

YachtFlags.com provides high quality courtesy flags that are manufactured in durable Knitted Polyester fabric. Knitted so that the fabric itself does not deteriorate in the constant movement that marine flags are usually exposed to, and polyester so that the flag does not weaken in the strong UV-light usually found in the main sailing areas of the world.
YachtFlags.com offers a discount to Noonsite members.
Use the coupon code NOONSITE-5A2B when checking out to get 10% off today.




YachtFlags.com provides high quality courtesy flags that are manufactured in durable Knitted Polyester fabric. Knitted so that the fabric itself does not deteriorate in the constant movement that marine flags are usually exposed to, and polyester so that the flag does not weaken in the strong UV-light usually found in the main sailing areas of the world.
YachtFlags.com offers a discount to Noonsite members.
Use the coupon code NOONSITE-5A2B when checking out to get 10% off today.




YachtFlags.com provides high quality courtesy flags that are manufactured in durable Knitted Polyester fabric. Knitted so that the fabric itself does not deteriorate in the constant movement that marine flags are usually exposed to, and polyester so that the flag does not weaken in the strong UV-light usually found in the main sailing areas of the world.
YachtFlags.com offers a discount to Noonsite members.
Use the coupon code NOONSITE-5A2B when checking out to get 10% off today.
Simpson Bay Lagoon is a 12 square mile inland lagoon on Saint Martin which is connected to the Caribbean Sea by two small channels spanned by lift bridges; one is in the north-west and flows into Baie Nettlé in St Martin (Sandy Ground Bridge) and the other is in the south-east and flows into Simpson Bay in Sint Maarten (Simpson Bay Bridge). The French-Dutch border runs across the centre of the lagoon.
There are two small islands in the lagoon: the larger, Grand Ilet is in the French region of Saint Martin and Little Key, is on the Dutch Sint Maarten side. Much of the island’s maritime infrastructure is found in the bay, and Princess Juliana International Airport lies close to the lagoon's southern shore. The bay is serviced by more than half a dozen marinas and also has mooring balls and good places to anchor.
Calm water; large cruising community; yachting infrastructure; provisioning; fuel; water; marinas; access to airport; restaurants and bars. Helpful local businesses that offer almost any kind of service you might need. Countless restaurants, cheap beer and good food.
Note bridge times when planning entrance and exit. The narrow channels limit the flow of fresh water into the lagoon and urbanized areas of the lagoon, such as Cole Bay and Marigot, are highly polluted.
The lagoon is clear of hazards but can get strong wind gusts. Bridge fees need to be paid BEFORE entering the lagoon.
There are ongoing security concerns for visiting yachts in this anchorage.
18° 02"N, 63° 06"W
Last updated: March 2025
If you have information for this section, or feedback on businesses used, please let us know at editor@noonsite.com. We also welcome new information about businesses you have used (see Related Businesses).
As a free user of Noonsite you are restricted to viewing 3 country formalities per month. You have viewed 0 formalities this month – but can view the countries you have accessed to date as many times as you want.
Become a Noonsite Member and you can view unlimited formalities each month and enjoy additional member benefits. Membership fees help our team keep country formalities information up-to-date in support of cruisers worldwide.
Find out more about membership levels and Become a Noonsite Member.