Can anyone give me information for good travel guides to see some of the Mayan ruins (interested in day trips)?

Thanks!

Daniel, With Tanisha Tours is a great guide for both Altun Ha and Lamanai. Gets my vote.
Enjoy Josh

Willie Leslie, Searious Adventures, gets my vote! Wonderful, knowledgable guide.

willie has a really nice new boat too...

Used Herman at Sea-duced. He was great.

Here are a few good tour operators located in Ambergris Caye.

Seaduced by Belize //ambergriscaye.com/seaduced/index.html

Searious Adventures //www.ambergriscaye.com/searious/index.html

Tanisha Tours //ambergriscaye.com/tanisha/index.html

Hope this helps.
**Jim