This morning we drove a few miles to the Mayan ruins of Coba. It's not as famous as Chichen Itza, which is much further inland (and which we visited this time last year), but actually it's better. Less crowds, lots of shady forest and cycle track between the various buildings. Its heyday was from around 100 to 1000AD, thereafter overtaken by Chichen Itza and abandoned when the Spanish arrived. Indeed it was quite a late rediscovery and only opened up to tourists in the 1980s. Fascinating place.