Speedbird - I had a similar response from Amanpulo regarding security. But in my response, the resort added that the only uninvited guests to the island were the marine turtles.

Zigzag - I had some trouble with jetlag on the way over. My first few days were a fog. But once I truly allowed myself to sleep, everything was better. I blame this more on our 30+ hours of travel time than on the time difference (long story). Just use melatonin when you go to bed at night and it will help you reset your clock. By the way, I adjusted much better on the trip back and was at work the next day without issue.

We departed Amanpulo at 3pm - the last flight out.

I'm afraid I can't comment on Manila. We didn't end up having much time to see the city. But I hear there are some very good restaurants. We stuck to the hotels. In hindsight, I think if I would have let myself sleep some more our first day in Manila, I would have felt better that first day at Amanpulo.