Arenal Observatory Lodge Costa RicaThis is the only lodging within the national park and is located in forest high on the volcano. Pool, lovely settingAlajuela Province, La Fortuna, 21007, Costa Ricahttps://www.arenalobservatorylodge.com/en/ +506 2290 7011 You should also check out Tortuga Lodge Tabacon Thermal Resort and Spa Evergreen Lodge Hotel Belmar Mawamba Lodge Hotel Si Como No