WT, when I am in Belize on vacation, time is money, so I usually fly to get places quicker. But a couple of months ago, I took the Express bus from PG to Placenica, $5 U.S., 1-1/2 hour ride and beautiful scenery along the way. If you have the time, take the bus from Belize City. If you want to get to PG quicker, fly out of Municipal, it is a bit cheaper, but there are 2 pretty quick stops on Tropic in Dangriga and Placencia on the way.

Don't know if you have yet been to Panama, but I took 2 trips there - loved it. Make sure you get to Bocas on the Caribbean side, the Pearl Islands on the Pacific side and definitely wander around Casco Viejo (old town Panama City). You will love it!