A brief drive from the port where the cruise ship stopped & we were posing for the obligatory photo to show what we looked like when we were clean. Then it was off to our instruction & safety briefing, where we were given a complimentary bandana to keep the mud out of our hair & for hygiene as we would be wearing a helmet. The instructions are simple & the 250cc, single seater, four wheels ATVs are simple to operate. They gave us the opportunity to go to the front if we were confident of driving the ATV or further back if not. The track through the jungle was very muddy & very wet, with some pretty deep puddles to splash through. We had great fun & got very muddy careering down the trails. We stopped for a break & had a talk on the Mayan ruins that were there. Although this was quite interesting if you haven't been to any other Mayan ruins, it was nothing compared with (say) Chichen Itza. Didn't really see any interesting animals but we were too busy driving to spend much time looking. The ATVs go off in a line, so if you do get stuck behind someone who wants to go slow, it can be a bit frustrating but its easy to hang back a little & then catch up again at speed if you want to. Take a change of clothes, wear wet shoes if you have them & enjoy your mud bath.