Mosquitos in Belize are the size of small birds!
We did the same trip, great time after the long ride. Was in a previous Grayhound type bus with apparently no suspension but air conditioned and a restroom. 2 hours out, 2 hours back with an amazing lunch at Hode's Place. Well worth the trip!
The tenders to the port were fine with us, no issues. Large tenders, wasn't too rough. The port was a little shady like others have mentioned, it was cool leaving the bustling Belize City driving out through the countryside nearly to Guatemala. It was HOT, and HUMID. Took a cool little ferry over the Belize river to get to the ruins.
*Found port area pics 🙂
Tender line....
Costa Maya, as others mentioned, typical Caribbean cruise port feel after a long pier walk. We too went to Maya Chan, loved it! Not the prettiest beach I've been to but, the food and drinks were amazing. Plenty to do for adults and kids, cheap massages, and again the food was great.