One thing which I regret with my previous stays is that I did not take advantage of the free activities in Shangri-la Mactan aside from the non-motorized sports. I think its a good idea to be locked up in the resort for two to three days in order to fully enjoy the activities Shangri-la has to offer. After all, 90% of the activities are free including intro scuba and yoga!
If you will be in the resort during weekdays, I encourage you to try the intro scuba in the main pool. It was such a nice experience and the lesson is one on one. This 30 minute activity is free! The oxygen tank will cost you thousands alone in other diving class places.
Morning Yoga in Chi Spa
In House Gym
If you have kids, the play center will come very handy.
Fish feeding by the beach shore.