Our first trip was only 5 days so we wanted a little taste of everything for our single trip inland.

We did a combo cave tubing / Xunantunich ruin tour with lunch in San Ignacio. This allowed us to see a little of the local culture and mix it with two smaller trips in the same time it would take to do Lamanai. Lamanai is a better ruin by far, but Xunantunich was great and close to the town of San Ignacio allowing for some real Belizean culture.

Just a thought...

Thanks everyone for your feedback. I'm only looking for a day trip so it would seem if I balance cost, time, and class of ruins, my best bet is probably Lamanai.