From late December through March, humpback whales migrate to the warm waters off Los Cabos to breed and give birth. You’ll typically see mothers with calves, breaching, tail-slapping, and sometimes getting surprisingly close to boats. Expect a 2- to 3-hour trip that also cruises past the Arch and sea lion colony. The Sea of Cortez side is usually calmer than the Pacific, so most tours stick to that route. Sightings are never guaranteed, but the odds are very good during peak season (January–February). Bring binoculars, sunscreen, and a light jacket; the wind can be chilly even when the sun is out.
Expect to pay around $60–$110 per person depending on boat size and whether it includes drinks or a marine biologist guide. Smaller pangas get you closer to the water but bounce more; larger catamarans or three-level boats feel steadier and give better sight lines for photography. Skip the ultra-cheap sunset booze cruises that tack on whale watching as an afterthought—pick an actual whale-focused tour that leaves earlier in the day. If you get seasick easily, take medication beforehand and choose a bigger vessel.
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