By far the best ceviche that we had on the island was on the day we chartered a boat with Guerrero's - Becho (sp?) and his son Becho took us out fishing in the morning. We caught a bunch of snapper of varying types and several Queen Triggers (too beautiful to eat - we threw those back), then we headed up to Bacalar Chico for some wonderful snorkeling. On the way we picked up a few conch off the bottom and Becho made us an outstanding ceviche. After a couple of hours of snorkeling, we headed in to the beach and Becho grilled up our snapper in this amazing sauce concoction of his and served it up with grilled potatoes and onions. It was the best day of our vacation (and that's saying a lot - we had a great vacation!!!).