We chose Tanisha Tours because of the posts on this message board. It was a fun, wonderful day. Daniel was a wealth of knowledge on the river, at Lamanai, and about the Mayas. The food and rum punches were delicious! Belikin Bill, I loved your magic school bus reference because it was one of many magical days in Belize!
(I haven't been to the zoo, so I can't help out there.)