St Martin To St Barts Day Trip: The Complete Planning Guide

A day trip from St Martin to St Barts is one of the few Caribbean crossings where the journey itself is the product. The two islands sit close enough that a boat can leave in the morning, spend the middle of the day in Gustavia and Colombier, and return before dark. Only six bookable tours make this run, and five of them are private charters priced per group, which shapes every planning decision on this page. The sixth is a shared group boat day from Simpson Bay at $189 per person, and it only runs between 12 May and 31 August 2027.

This guide walks through the day from the St Martin and Sint Maarten side: where each boat leaves from, what it costs, what papers you need, and how the St Barts marine reserve rules affect the stops. Every price and inclusion here comes from the live listings or from official sources, and where something is not confirmed we say so plainly rather than guessing.

How Does A St Martin To St Barts Day Trip Work?

A St Martin to St Barts day trip is a 6 to 8 hour boat excursion that departs from a St Martin or Sint Maarten port, crosses to St Barts, spends several hours at beaches and bays such as Colombier and stops like Gustavia, and returns the same evening. Six bookable products exist: five private charters priced per group, and one shared group day priced per person.

The structure of the day is broadly the same whichever boat you pick. You meet the crew at a dock in the morning, on either the Dutch side (Simpson Bay, Cole Bay) or the French side (Anse Marcel, Grand Case). The crossing to St Barts takes up the first stretch of the morning. Once there, the day typically splits between water time and shore time: snorkelling and floating off the boat in bays such as Colombier, then a stop in Gustavia, the island's capital and harbour town. The boat returns in the late afternoon.

The listings describe the days differently. The group boat day from Boomerang Boat Charters runs about 7 hours and lists lunch, alcoholic beverages, snorkelling equipment, paddle boards, life jackets in adult and child sizes, floating noodles and a lily pad among its inclusions, with a maximum of 40 guests. The private charters are longer on paper, about 8 hours for the Love Boat Sxm and Paper Boat motor charters, 7.5 hours for the Paper Boat sailboat, and 6 to 8 hours for the Nikki Beach trip. The overnight catamaran from Zephyr is the outlier at 2 days, and it is the only product here that is not a same-day return.

Because the island is small and the boats are few, the choice between products is really a choice between three variables: how many people you are travelling with, whether you want to share the boat, and how much of the day you want commanded by your own itinerary. The next sections take those in turn.

Group Boat Day Or Private Charter From St Martin?

The group boat day from Simpson Bay costs $189 per person plus a $20 government fee and caps at 40 guests, while private charters cost from $1,947.52 to $4,816.09 per group regardless of headcount. Split across a full group, some private charters work out near the per-person price, which is plain arithmetic on the stated maximums, not a discount promise.

The per-person option is the Boomerang Boat Charters day trip, meeting at the Dinghy Dock Bar in Simpson Bay on the Dutch side. It runs about 7 hours and its listing shows operating dates of 12 May to 31 August 2027 only, so outside that window the per-person route does not exist. Gratuities, towels and private transportation are excluded, and a government fee of US$20 per person is paid separately.

The private alternative splits into motor charter, sailboat and catamaran formats. Paper Boat Charter runs two distinct listings that should not be confused: an 8 hour motor charter from Marina Anse-Marcel rated 5.0 across 17 reviews, from $2,100 per group for up to 8, and a 7.5 hour sailboat charter from $2,000 per group for up to 8, which is a new listing with no reviews yet. Love Boat Sxm runs a full-day private charter from Marina de l'Anse Marcel for up to 10 guests from $1,947.52 per group. Seven Marine's Nikki Beach charter from Cole Bay takes up to 15 and starts at $2,120 per group.

Running the arithmetic on the stated maximums, the full-day Anse Marcel charter at $1,947.52 for up to 10 comes out per guest to a figure in the same territory as the $189 group day once that day's $20 government fee is added, though only if you fill the boat to its stated maximum. The Zephyr overnight catamaran is from $4,816.09 for up to 4, so it is a different animal entirely, a two-day trip with breakfast, lunch and dinner included rather than a day out.

If your dates fall inside the May to August window and you are a party of two or three, the group day is the obvious value play. A family of six or more, or any group that wants to set its own stops, will usually find the private per-group price competitive once the boat is filled, and the charters run outside the group day's season.

What Does A St Martin To St Barts Day Trip Cost All In?

The headline prices run from $189 per person to $4,816.09 per group, but the all-in figure depends on fees stated on each listing: the $20 per person government fee on the group day, dock fees of 40 EUR per boat plus 5 EUR per guest on the full-day Anse Marcel charter, and customs clearance fees on the Nikki Beach trip. No other fees are confirmed.

Fee discipline matters here because the listings are specific. The Boomerang group day adds the US$20 per person government fee on top of the $189 fare. The Love Boat Sxm charter excludes dock fees at St Barthelemy, listed at 40 EUR per boat plus 5 EUR per guest, and also excludes the slide. The Nikki Beach charter excludes gratuities and customs clearance fees. The Paper Boat motor charter includes the fuel surcharge but excludes lunch and gratuities. The overnight catamaran includes breakfast, lunch and dinner but excludes lunch in Gustavia and crew tips, which the listing notes are customarily 15 to 20 percent.

Beyond fees, the inclusions explain most of the price spread. The Paper Boat motor charter includes unlimited beer, wine and soft drinks plus a giant floating mat. The Nikki Beach charter includes a round-trip private transfer, an open bar, beers, sodas, snacks and bottled water, which is the most door-to-door package of the six. The sailboat charter lists an open bar and snacks, nothing more. Whether lunch matters is a genuine differentiator: only the group day and the overnight catamaran list meals.

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0 per person government fee; the Love Boat Sxm charter adds dock fees of 40 EUR per boat plus 5 EUR per guest.

Our St Barts boat tour prices guide breaks these numbers down further if you want the per-guest arithmetic laid out in full.

Where Do The Boats Leave From Around St Martin?

Departure points split across both sides of the island: Simpson Bay (Dinghy Dock Bar) for the group day, Marina de l'Anse Marcel and Marina Anse-Marcel for two private charters, Cole Bay for the Nikki Beach trip, and Quai 58 pontoon in Grand Case for the overnight catamaran. Where you are staying on St Martin should drive which boat you pick.

The Dutch side, Sint Maarten, hosts two departures. The Boomerang group day meets at the Dinghy Dock Bar in Simpson Bay, which is convenient for Simpson Bay and Maho area hotels. The Seven Marine Nikki Beach charter leaves from Cole Bay, just inland of the Simpson Bay lagoon, and is the only listing that also includes a round-trip private transfer in its price, softening the logistics question entirely.

The French side, Saint Martin, hosts the rest. Love Boat Sxm departs Marina de l'Anse Marcel on the north-eastern coast and Paper Boat Charter's motor listing uses Marina Anse-Marcel, the same body of water, while the Zephyr catamaran leaves from the Quai 58 pontoon in Grand Case, the fishing-village port on the north coast. The Paper Boat sailboat listing states only Saint Martin as its departure area and notes that pickup is offered.

For readers basing themselves on the Dutch side near the cruise port, the scheduled ferries described in our St Martin to St Barts ferry guide leave from Philipsburg and Marigot, and those are walk-on services run by other operators, not products sold on this site. The charter route and the ferry route are separate decisions.

What Papers Do You Need For The St Martin To St Barts Crossing?

Every passenger needs a passport, full stop: the Great Bay Express ferry requires one for all travellers including French nationals, and the same logic applies to any international crossing between Sint Maarten and Saint Barthelemy. For US citizens the State Department page describes a passport with 6 months validity and no visa for stays up to 90 days, but check the official page before you travel.

The passport rule is the one entry fact verified directly from an operator: Great Bay Express states that a valid passport is mandatory for every passenger, and check-in closes 15 minutes before departure with arrival advised 45 minutes ahead. A day trip by boat between the Dutch and French sides of St Martin and the French island of St Barts crosses borders, even when it does not feel like it, and skippers handle reporting requirements for charter guests.

The US-specific guidance comes from the State Department's French West Indies page, which our research cites but could not re-fetch directly, so treat it as directional rather than settled: passport with at least 6 months remaining validity, no visa for stays up to 90 days, with an onward or return ticket, accommodation confirmation and proof of sufficient funds. Check the official US State Department page before you travel, because entry rules change and our reading of that page is secondhand.

Nothing else about entry is confirmed: Schengen status, arrival or environmental taxes, and customs allowances were all unverified on official pages, so this guide prints none of them. The practical checklist is short. Passports for everyone on the booking, the confirmation from the operator, and cash or card for the fees listed on your specific charter.

What Does The Day In St Barts Actually Look Like?

A typical day puts the crossing first, then a morning of water time at bays such as Colombier or Ile Fourchue, a midday stop in Gustavia for lunch and a walk, and a return crossing in the late afternoon within the 6 to 8 hour window. The group day's own itinerary names Gustavia, Colombier Beach and Ile Fourchue, the island's signature trio.

Colombier is the stop that justifies the boat for many travellers, because it is one of the beaches you can only reach by boat in St Barts without a long hike. The group day listing makes Colombier and Ile Fourchue its headline stops alongside Gustavia. The Love Boat Sxm charter names St Jean Beach and Gustavia as its stops, which is the other classic pairing: St Jean for the water and the famous beach setting, Gustavia for the town.

Gustavia itself rewards the shore hour. It is a small harbour capital wrapped around a marina, and the full-day charter's listed stops there give you time for lunch, which the Paper Boat motor charter and Nikki Beach charter exclude from their prices, so budget for it. The overnight catamaran is explicit that lunch in Gustavia is the excluded meal, breakfast and dinner aboard being included.

Water time looks different on each boat. The group day carries paddle boards, floating noodles, a lily pad and snorkelling gear for up to 40 people. The private charters carry similar floats scaled to their groups: the Love Boat Sxm includes a paddle board and floating mat, the Paper Boat motor charter a giant floating mat, the sailboat an open bar and snacks. What nobody can promise is what you will see in the water; sea life, coral and visibility vary, and the listings describe possibilities, not guarantees. Readers planning specifically around turtles should read our piece on whether you can see sea turtles snorkeling in St Barts.

What Are The Marine Reserve Rules On The St Barts Stops?

The Reserve Naturelle caps boat speed at 5 knots in its waters and bans jet skis, seabobs, electric surfboards and any thermal or electric propulsion device, which is why no jet ski product exists around St Barts. Touching turtles or coral, wearing gloves in the water, taking shells, feeding animals and bringing dogs onto reserve beaches are all prohibited.

The reserve covers five zones, including the bays of Colombier and Fourchue, which is to say the exact stops your day trip makes. For visiting boats the practical rules are the 5 knot speed limit, mooring and anchoring discipline, and in-water behaviour. Ecological mooring buoys are advised for vessels up to 20 tonnes and 25 m, with stays capped at 96 consecutive hours. In Colombier and Fourchue specifically, vessels over 25 m are not authorised at all, and anchoring is only allowed outside the buoy zones. The rules are published by the reserve authority's regulatory zones page, and skippers operating the day trips know them; guests mainly need the behavioural rules.

For snorkellers the list is short and absolute: no gloves, no touching anything living, no taking coral, plants, shells or crustaceans, no feeding, no chasing. Twenty-three dive sites sit inside the reserve, marked by a red square crossed by a white diagonal, though none of the six day-trip products here is a dive product. The ban on propelled water toys explains the shape of the local market: readers searching for jet ski tours around St Barts will not find one to book, and that is by regulation, not oversight. Our longer marine reserve explainer covers the zone map.

When Is The Best Season For A St Martin To St Barts Day Trip?

The group boat day only runs 12 May to 31 August 2027, while the private charters list year-round operation. Climate data favours the drier January to April stretch, when monthly rainfall runs 38.4 to 52.6 mm, over the wetter September to November period; hurricane season runs 1 June to 30 November with a peak from mid-August to mid-October.

The Meteo-France station on St Barthelemy, using 1991 to 2020 normals, shows average monthly highs from 28.5 C in January to 31.7 C in September, and lows from 23.3 C in February to 26.3 C in August, so warmth is never the variable. Rain is: February is the driest month at 38.4 mm and October the wettest at 135.6 mm, against an annual total of 891.3 mm. The months when the group day operates, May through August, sit between those poles at 61.7, 56.0, 80.4 and 79.6 mm respectively.

There is a real tension in the calendar. The only per-person product overlaps the start of the Atlantic hurricane season, which the US hurricane climatology definition places from 1 June to 30 November with peak activity mid-August to mid-October. That is stated as a fact about the season, not a forecast about your week; plenty of June and July days are calm. The private charters, which run year-round on their listings, are the route if your travel dates fall outside the group day's window. Our best time to visit St Barts guide works through the trade-offs month by month, and if you are weighing a repeat visit, see also how many days you need in St Barts.

Event dates can anchor a trip. The St Barth Bucket Regatta is mid-March 2027, and the Music Festival's 43rd edition runs 8 to 18 January 2027. The Gourmet Festival has been announced for November 2026; dates beyond that should be confirmed with organisers before you plan around them.

Is A Day Trip Enough, Or Should You Stay Overnight In St Barts?

For most visitors the day trip format works because the boats concentrate the island's highlights into one 7 to 8 hour window with Gustavia folded in: Colombier above all, reached by boat or a hiking trail, plus boat-only Île Fourchue. Staying overnight adds the evening town and unhurried beaches, and the Zephyr catamaran, a 2 day 1 night trip from $4,816.09 per group for up to 4, is the only product here that sells that.

The honest comparison is about pace rather than coverage. A day trip delivers the water and the harbour; an overnight delivers dinner in Gustavia, a morning swim before the crowds, and no return clock. Our longform take in is a day trip to St Barts worth it and the head-to-head in is St Barts better as a day trip or overnight cover the decision in detail.

On this site, St Barthelemy Tours lists exactly six products, and the overnight question has exactly one answer in that roster: the Zephyr catamaran, which includes breakfast, lunch and dinner aboard for up to 4 guests, excludes lunch in Gustavia and crew tips of 15 to 20 percent, and offers a full refund up to 6 days in advance. Everyone else returns to St Martin the same evening, which for a first visit is usually enough to understand what the fuss is about.

Cancellation terms are worth checking before you commit either way, since sea conditions can move a boat day. Free cancellation is listed on the group day, the Love Boat Sxm, Paper Boat and Nikki Beach charters, the sailboat specifying up to 24 hours before, and the catamaran offering its refund window up to 6 days ahead. Confirm the current terms on the operator's live listing when you book, as these can change.

Whichever format you choose, the planning sequence is the same: confirm your dates against the group day's May to August window, match your St Martin base to a departure point, count your party against the group maximums, and carry passports for everyone. The boats are few, but they cover the crossing well.

Common Questions About St Martin To St Barts Day Trips