Isla Guadalupe is the westernmost part of México, but it’s still a part of the State of Baja California. Civilians who are not scientists could only go in on a liveaboard from Ensenada for 18-20 hours. On the island, there are endangered endemic species and the green areas are almost wiped out. In the west, there’s a small fishing village, in the south, a military camp.
Tourists visit not the island, but the surrounding waters, in my case, as close as around 250 metres from shore, to see mostly the great white sharks roaming in the area. There are also elephant seals, fur seals, dolphins, jellyfish, and even whales in the ocean. We had the cages in the water, then the staff members started throwing tuna in as baits to attract the sharks. The first 2 days they didn’t show up until around 10-11am, but on the third day, they started showing up around 6.30am. On our trip, we saw as many as 6 sharks in one day, and once they started coming, they were always there until around 4-6pm. The sharks were curious about us, at times bumping into our cages, but no damage was done. The same could not be said of the seals, who were biten and later presumably eaten when they floated away dead. The water was mostly calm near the island, but could get rough in the open sea.
The biggest obstacle to staying in the water was the temperature, but other than that, it’s totally possible to stay there the whole time.