Did 2 days of whale shark swimming out from Isla last week (will write a full trip report when time permits).
It seemed the whale sharks were quite close to Holbox (compared to more north east to cancun). We had no more than about 30-45 min boat trip for them on the second day (longer on the first day though)... So even with swimming as much as anyone wanted with them we were still back by around 11 am
We had plenty of whale sharks. On the first day we had first one juvenile (5-6'ish meter) together with a few boats. Then we went somewhere else, where we had roughly 5 whalesharks within very little distance (almost had swimmers being trapped between two
). The biggest we had was around 10 meter I reckon.
Second day we had one around 6-7 meter which we kept swimming with since it was very docile, and had a few mantas staying around as well.
we had lots of mantas both days as well. I was told by our diving op in playa that seeing mantas are more rare going from cancun, since they are mostly along the coast of Holbox...but can not judge if it is true or not...
Anyway the mantas we had were surprisingly friendly. I had a 15 min swim with a big one (around 5 meters from wing tip to wing tip)...It just keep circling around us, had to try to get out of its way several times when it came very very close (as in 5-10 cm)
I dont know if it counts as a recommendation, since I have not gone from puerto juarez
But we enjoyed both the whale sharks and the mantas from holbox ...
Have a nice trip!