We did it in January. We were the youngest ones on the bus ..... and we're all under 50! Wasn't what we thought. You're taken to a 'museum' (near a marina & told some of the history of Belize and then there's the 'show' of native dancers at the end of the tour at a hotel and that lasts 30-45 minutes. We took a taxi back to the ship area before the show started. We were waiting for the room to fill up with another tour bus. The show was too long and not that interesting to us.
We heard so many talk of the fun they had cave tubing. Should've done that.