Are any of the additional excursions worthwhile? My wife and I will be there in roughly 3 weeks. We were trying to see if we could somehow get a charter to El Nido, see the lagoons and come back, but apparently that is something Amanpulo is looking into but isn't offering yet. The third party they connected with would charge an exorbitant amount, that just made it not worth it. Similar for trying to get to Apo or Tubbataha Reefs to scuba dive. Are there are any similar lagoon like excursion, and is the diving worthwhile at Amanpulo?