Gaia Lodge, formerly Five Sisters Lodge, has new owners, and has gotten a serious refurbishment. They've really done a great job remodeling the main entry, bar, and restaurant palapa. They have an outstanding collection of masks. It's located in Mountain Pine Ridge, just down the lane from Big Rock Falls.
Pictures on fb: https://www.facebook.com/media/set/?set=a.10151315909611162.496422.265387546161
Tripadvisor page: http://www.tripadvisor.com/Hotel_Review-g291971-d308799-Reviews-Gaia_Riverlodge-San_Ignacio_Cayo.html
Website: http://www.gaiariverlodge.com/