I just added mer-people to a club and all except one swims in mermaid form. Conch shells can be found around the lagoon on the different beach areas; one area is the beach in front of the two unusable beach houses and if you also follow the trail “your” far left of the two beach houses you will find shells. There also shells on the beach across the lagoon from the sand bar, and if you follow that beach all the way around to where it flows into the ocean shells should be on that beach to your left. There is also two or three shell areas in Lani St Taz; one area is on a distant secluded island, the other is near one of the small lot houses.