Beautiful world, nice cas, and build/buy, but probably one of the most underwhelming EP's for me.
-A Sulani cultural skill like Selvadorada skill? Thought it was pretty nice and seeing one for Sulani for you to learn more about their culture or be taught by the native sims there would be pretty nice.
-More depth to mermaids. Would like to see a skill tree for mermaids much like Vampires and Spell casters.
-More water and beach related activities for sims (Sims being buried in the sand, volley ball, Marco polo, breath holding competitions, parasailing)
-Two sims being able to be on a boat.
-More of a interactive Life guard career?
-Better Island Events (Maybe seeing island natives with instruments like drums and the like playing and more)
-Wouldn't mind seeing one of those big honking surfing machines like from the Sims spin off games
-Would like a rustic looking bassinet or perhaps even a mermaid lookin' one.