There's no escaping the happy fact that you're nestled deep in the rainforest at this Central Pacific hideaway: just gaze up into the banana trees to see curious, white-faced capuchin monkeys staring right back at you. Mimic the laidback form of slinky sloths clinging to the canopy overhead by enjoying the many (human) creature comforts at Arenas del Mar. Relaxation is practically mandatory in...