Expect warm, clear water with decent but not mind-blowing snorkeling. You'll see tropical fish, occasional rays, and maybe a sea lion or two, especially around rocky points. Visibility is usually good (30-60 ft) but can drop after rain or with wind. Most trips visit two sites via boat; the ride itself can be bumpy and fun or nauseating depending on the day and your stomach. It's a half-day activity—typically 3-4 hours total—including gear, a guide, and snacks. Not the Caribbean, but solid for the Pacific side of Mexico.
Best time is May through October when water is warmest (75-85°F) and seas are calmer. December to April brings bigger swells, cooler water, and more wind, though marine life can be more active. Expect to pay around $50-90 per person for a standard boat tour that includes gear and transport. Private or smaller-group options push $120-180. Cheaper tours often mean bigger crowds and shorter snorkel time.
Pick a tour that visits Chileno Bay or Santa Maria—those consistently have the healthiest reefs and easiest access. Skip the cheapest glass-bottom boat combos; you spend more time looking through dirty plastic than actually swimming. Bring your own mask if you have one that fits well—rental gear is hit-or-miss. If you're prone to seasickness, take something before you leave the dock.
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