A typical speedboat tour zips you along the coast at 30-40 knots before slowing down for snorkeling in shallow lagoons, swimming with dolphins if you're lucky, and a stop at a small island like Ile aux Cerfs or Benitier. Expect a full-day trip (6-8 hours) with a basic BBQ lunch included, lots of sun, and some wave action that can get bumpy when the wind picks up. The experience is fun and efficient for seeing multiple spots without wasting time on slower boats, but it's not quiet or intimate — you're usually in a small group of 8-15 people.
Best time is May to October when the southeast trade winds are lighter on the west and north coasts and seas are calmer. December to March can be cheaper but expect rougher rides and more rain. Expect to pay around $80-150 per person depending on group size, inclusions, and whether it's a half or full day. Private tours push toward the higher end.
Pick the smaller-group options that focus on one coast rather than trying to cram everything in. Skip the ones promising guaranteed dolphin swims — nothing is guaranteed and the boats sometimes chase pods. Bring your own snorkel mask if you're picky about fit; the provided ones are often average.
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