In April the season will not really have started so things may be a bit quiet. 2 places I can recommend that are open all year are The Florida good food and prices and the 3 bells, the one with Santa climbing down the chimney, near Tansas. Amongst other things it sells Korean food which is fabulous. On the front about 2 minutes from Marti is Cafe Ann which is great for lunches and for superb cakes for the afternoon.
Icmeler is compact and the main centre has around 6 main streets, plenty of restaurants and shops. The old village is around 15 minute walk away and has more shops restaurants.
Good way to get around is dolmus,which is a mini bus. Just stick out your hand and it stops. Its cheap and has a very regular service. Places to go include Marmaris about 15 minutes away and Turunc about 20 minutes away. You can also get a water taxi between Icmeler and both places which is lovely. Last years prices were 7.5 lira one way
Stewart