About St. Martin & St. Barth’s

In the northeastern corner of the Caribbean Sea lie the vibrant islands of Saint Martin & Saint Barthelemy. Saint Martin is divided into two countries; the northern half of the island is French while the southern half is Dutch. The neighboring French-speaking Saint Barth’s is a hub for high-end yachting & travel, surrounded by picturesque white sand beaches and boasting a variety of luxury fine dining & shopping. Renowned for their diversity and abundance of marine life these islands are a sea lover’s paradise. They also boast amazing French Caribbean cuisine, high fashion, quaint boutiques, and secluded anchorages.

What’s Included?

Head over to our Onboard Amenities page to see a complete list of what’s included with your exclusive CetoSea vacation!

St. Martin / Sint Maarten Island Spotlight

Population: 32,152 (French side) + 41, 109 (Dutch side)

Currency: USD, EURO, NAF

Highest Point: Pic Paradis (1,391 ft.)

Marine Reserves: YES & 30+ dive sites

CetoSea Recorded Microplastic Data: 14,890 fragments / sq. mile

Famous For: “The Friendly Island”

St. Barth’s Island Spotlight

Population: 9,427

Currency: EURO

Highest Point: Morne du Vitet (938 ft.)

Marine Reserves: YES 7 MPA’s & 15+ dive site

CetoSea Recorded Microplastic Data: 7,445 fragments / sq. mile

Famous For: 300 sunny days per year!

Map of the Cruising Area

Sample Trip Overview

Base Price: $30,000 ~ 6-8 Passengers

Recommended duration: 7 Days

Distance Sailed: 52 nautical miles

10 Microplastic Samplings

8 Beach Clean-up Options

8 Snorkelling & Dive Spots

5 Marine Protected Areas

2 Guided Nature Hike Options

(SXM) Princess Juliana Intl 

Departure Dates:

  • Between May 13 – June 1, 2019
  • See Calendar for latest options

Sample Itinerary Option

Day 1

Welcome to St. Martin

Arrive to St Martin where you will be met by our bubbly airport taxi driver. Check out the island on the scenic drive up to Anse Marcel Bay where our yacht Felix will be waiting to greet you. Spend your first evening at anchor in the bay, relaxing as you get to know the Captain & Crew and falling in love with your new home for the week.

Day 2

Beach Bliss & Secluded Tintemarre Island

Your Citizen Science Research adventure begins with a trip to the beaches in Anse Marcel Bay & Grand Case Bay for Beach Clean-ups.  The environmental impacts of Hurricane Irma are a continual challenge, yet we’re proud to contribute to restoring the coastline.  As we sail the protected waters of the Anguilla Channel we’ll perform our first ocean microplastic research trawl, then stop in stunning Grand Case for lunch.  We drop anchor in Tintemarre for the evening, an uninhabited island, to explore both on land & in the water.

2 Dive / Snorkel Options

18 Nautical Miles Sailed

2 Microplastic Samples

2 Beach Clean-ups

Day 3

A Night Under The Stars At Ile Fourchue

Set sail from St. Martin to the Ile Fourchue Nature Reserve (St. Barth’s).  Hike to the island’s uninhabited summit for a breathtaking view of the open ocean and neighboring islands Saba, St. Eustatius, and St. Kitts & Nevis. Dive into the crystal blue water and SUP or snorkel with the sea turtles and reef fish that call this reserve home. Join us for a Beach Clean-up on the rocky beach of Ile Fourchue – home to nesting migratory seabirds. End your day moored under the starry sky, where the nearest light is 15 miles away.

2 Dive / Snorkel Options

12 Nautical Miles Sailed

2 Microplastic Samples

1 Beach Clean-up

Day 4

Beach Lounging like a Celebrity in Colombier Bay

Continue south to the green tip of St Barth’s, which is only accessed by boat or foot path. We moor for the day in Colombier Bay for some of the best snorkeling & diving in the Leeward Islands. Take a casual hike along the Nature Reserve trails which leads to our favorite lesser-known beach (and Beach Clean-up site) – Anse Flamands. Surf the waves on the windward side, or enjoy a stroll along this wonderful crescent bay before returning to the yacht for a secluded evening.

2 Dive / Snorkel Options

3 Nautical Miles Sailed

1 Microplastic Sample

2 Beach Clean-ups

Day 5

Charming Port Gustavia & Gros Ilets Coral Restoration

Continue sailing down St Barth’s historic, picturesque coastline in the lazy sunny morning. After a quick stop to the Gros Ilets Marine Reserve SCUBA site, our next stop is Port Gustavia – the epicenter of the island’s activity. Explore Gustavia for duty free shopping, 17th century Forts, delicious French cuisine, the original “Cheeseburger in Paradise” & a drink or two.

1 Dive / Snorkel Option

2 Nautical Miles Sailed

1 Microplastic Sample

0 Beach Clean-ups



Day 6

Relax On Deck & Cruise Home to Sint Maarten

Take in the sunrise or join the early morning divers before we embark on our journey back to Sint Maarten. Relax on deck breathing in the sea breeze as we head to Simpson Bay. Spend your final evening ashore sharing the experiences, adventures & positive impacts that have filled your week.

2 Dive / Snorkel Options

17 Nautical Miles Sailed



2 Microplastic Samples

1 Beach Clean-up

Day 7

Return To Port & Head On Home!

Review a summary of the conservation data collected as Citizen Scientists during your Sustainable Ocean Adventure, and realize the immense positive impact you contributed every day. Say your final goodbyes as you disembark the yacht & meet our airport taxi driver for a shuttle to SXM.

Life On Board

There are absolutely zero hidden fees when you sail with CetoSea.
We’ve curated your cruise experience to include all of the luxuries you’ve come to expect and even more.

Start Planning Your Next Adventure

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