Myself and the Mrs went to the Yucutan Peninsula ourselves a few years back. We stayed at Chichen Itza for the first week and visited the temples at Uxmal (massive),Tulum, Kabah, Merida etc and went to Campeche and then did an all inclusive for the second week to recover. A lot of the ruins are in the middle of jungles, and take a bit of a trek to get to, and we had to do it then while my other half was more mobile. We needed that second week. We also visited the caves at Lol-tun, though I didn't swim or dive there and we went to the mangroves. Our Mayan guide was amazing, chatted to him for ages about Ricky Hatton as well as the Mexican greats. It's quite different down south with the indigenous Mayan still spoken along with Spanish and English. Food was amazing and hospitality as well. I did some good work there too with sound recordings etc, because the acoustics of ziganauts are very unique.

The second week at the all inclusive I got bored of trying to out drink the apartment fridge before the maid refilled it by the second day, but the food was amazing. A lot of Americans and Canadians but we also met people from Devon about 20 miles from us in the English Riviera (Bilbo's stomping ground) We went to the karaoke one night and a few British birds got up and murdered some Maddonna tune. We cracked up but the Americans didn't seem to get it and took it very seriously. They did a lot of country covers, knew all the moves and walked around like it was cabaret

You will love it mate. The sister-in -law did it recently with her chap and did more of the scuba diving and water sports and they loved it too.