DRAFT — body needs Carlos’s review.
Humpbacks migrate to these waters from both hemispheres — the southern population passes through July–November, the northern population January–March — which gives the Osa one of the longest humpback windows anywhere in the world. Outside whale season the boat still goes out for dolphins, which are reliable year-round in pods of dozens, sometimes hundreds.
Marine-biologist-led tours are not the norm in Costa Rica; here they are. The hydrophone earns its keep — both for whale song in season and for dolphin chatter the rest of the year.
Good to know
Wear your swimsuit under your clothes before boarding — there is no bathroom on board. Groups of 8+ qualify for group rates; ask when you reserve.
What to bring
Shorts, t-shirt, sunblock, sandals or flip-flops, a camera.
