This area of Costa Rica is short on historical attractions, museums, art galleries, etc. If you're in Coco, you're going to see beaches, wildlife, and enjoy the sun.
Popular beaches near Coco include Hermosa, Ocotal, Flamingo incredibly popular with the locals on weekends, Panama, and a handful of remote beaches on the Papagayo peninsula including the beach at the Four Season Papagayo. Further away, Tamarindo is an excellent surf beach for beginners, as well as a more commercialized beach town. If you're looking for something and can't find it in Coco, it's probably in Tamarindo a little more than an hour away.
Downtown Coco beach is worth a look, especially after nightfall. You'll find drinking, dancing, and dining options, and even a couple of casinos.
Coco is also a great place to stay while exploring nearby natural wonders like the dormant volcano Rincon de la Vieja about 1.5 hours driving time, Lllano de Cortes waterfall about 2 hours drive time, and dozens of beaches within 1-2 hours drive too many to mention, in fact. Jungle tours are also popular, and most of the local tour providers include a "zip line" tour as the main attraction.
Coco is fairly far away from Arenal, a recently active Volcano that is a must-see of any Costa Rica visit. Therefore, if you plan on staying in Coco, you might want to set aside two days of your trip to visit and stay at a resort near the Arenal volcano.
