Los Islotes is the signature sea lion site off La Paz, set on guano-streaked rocky islets at the north end of the Espiritu Santo archipelago. Most visits focus on the playful juvenile colony that works the blue water around the rocks, with schooling fish and the occasional turtle adding to the scene. The site is reached by boat and operators normally work the calmer side of the colony rather than a fixed route. Guided scuba and snorkeling both make sense here, but wildlife rules, seasonal closures, and day-boat timing matter more than chasing a deep profile.