We have bought the tickets for the airfare. Kari and I are coming to Playa late July 23, and this time we are staying for three weeks.
We are also thinking of going on a trip by bus to Belize and Guatemala. Playa - San Ignacio - Flores - Tikal - San Christobal - Palenque, and then back to Playa. I haven't counted the days yet. We will have to see how much time to spend. The problem is we want a lot of time in Playa too.
The Guatemala trip has been discussed
here. I thought about a guided tour, but Anna convinced us we could do it ourselves.
Edit: The trip report starts on page 5.