OT - Looking for intel for Costa Rica trip

Hey everybody! The wife and I are going to Costa Rica in February for a late celebration of our 25th anniversary (which is next week). We are looking for any intel/suggestions/tips for neat restaurants, places to visit, things to do, etc. Also suggestions on anything we should do for our cellphones to function correctly for data (specifically maps and internet) while we are there (we have androids with 5G T-Mobile service). We love stuff off the beaten path that may be less touristy than the more mainstream stuff. We have our travel and hotels already booked as well as a rental car (already considering upgrading to an SUV, better to handle sketchy roads). Should we have an SUV instead of a regular car? We are flying into Liberia, then spending one timeshare week at The Villas Playa Samara (we are not opting into the all-inclusive meals, but will have our own kitchen in our suite and plan to explore restaurants), and then two more days at the Buena Vista Del Rincon Eco Adventure Park, Hotel & Spa near the Rincon de La Vieja Volcano which includes meals and adventure excursions (zip lining, horseback riding, etc). While at Playa Samara we will likely day trip up to the Nosara/Playa Guiones area, and other places yet to be determined. We look forward to any feedback or suggestions this awesome TKP community has to offer.

GO HOKIES!