Cidra is a small town and municipality of Puerto Rico located in the central highlands along the Cordillera Central, the central mountain range of the island. Although not popular with tourists, the town is known for its lake and the formerly endangered Puerto Rican plains pigeon (paloma sabanera).
Cidra is one of the municipalities in "La Montaña", the mountain.
A word of caution: if driving you are sharing the road with trucks, and locals. The mountain roads have steep descents and ascents, hairpin turns, and steep cliff drops are not always protected by railing. The roads may look like one-lane highways but are made to handle two-lane traffic.