Of course 100 Islands is next to my hometown so I frequent the place.It's more of a love-it-hate-it destination for me since medyo nakakasawa na.It's weird though coz despite so many visits, I am still not very familiar with the place. We frequent the usual spots like "Quezon Island, Children's Island, Governor's Island".That until 2010 when Mica of www.senyorita.net and I organized a Hundred Islands Blogger's Tour.
We coordinated with the Local Tourism Board and they were very accommodating.Thanks to Mr. Rey Livara for assisting us, I came to appreciate Hundred Islands in a different light.
Of course, bagsak parin namin on our last leg of the Island Hopping Tour was Quezon Island, but at least, we got to visit Shell Island which for me was one of the highlights of the trip.
Here are some photos of Shell Island.
photo credits to Rey Livara
NOTE: Boat Rental starts at 800php (small boat) good for up to 6pax which entitles you for a day tour of 100 island. You can pick three (3) destinations to hop on. I suggest you include Shell Island in your list. It is not usually in the travel map of tourists so there is a big chance you can have the island for yourself.
You might also want to rent a kayak.We did so and we kayaked from Quezon to nearby islands.