tldr: where can i find wild crocodiles/snakes without tourists flooding the area

im going to cozumel with my family in mid february and while they do casual snorkeling and beach relaxation, i wanna go ham with wildlife. my main goal is to swim with a wild crocodile. i've spent 3 weeks researching and mentally preparing myself, and i'm going to be practicing my swimming for the next 2 months. i dont want to spend all my time there searching for a crocodile and leave empty handed because of some loud ass families taking up all the ocean/river waters. if anyone has specific locations where i can find crocs or cool snakes without these disruptions, i would greatly appreciate it