You can collect bottles with notes in them by digging in the sand piles, draw shapes on the sand and build sand castles. I would have liked to be able to dig for some pirate treasure, pirate swords, and more collectibles as well. Even just a new art object or rocks, stones from the location like different marble stones which is very Mediterranean or small statues. New shrubs, olives, or harvestable plants, Oregano spice, something Mediterranean. I was surprised you can't add any of the water activities from Sulani either like the floats or diving or play/explore the waterfall. They could add mussels or crabs along the shore to harvest and fry. Dangerous glowing jelly fish... and little cute ones to keep as pets in a bowl.