Let me tell you something very educational. This place used to be full of crocodiles until they were hunted down and sold to Mindanao to produce belts, shoes, bags, etc.
That fact didn't encouraged me to take the paddle boat ride (Php 50.00 per trip) to go around the lake.
Inside the lake there's an islet which is on a figure of eight. They call the upper shape as Crocodile Islet and the lower shape as Snake Islet. That is very interesting.
They have picnic tables (Php 20.00/table) but I guess you need to bring your own food. You can also go fishing (Php 25.00/hour - maximum of 1 kl/person).
How to get there? It was a 15 minutes motorcycle ride from our resort (Santiago Bay). Entrance fee was only P10.00/head for adults.