Island House Beach Resort! Crescent Beach, Siesta Key Florida. This beautifully maintained complex is located on the widest part of one of the best beaches in Florida. This condo offers a view of palm trees, white sand and the turquoise waters of the Gulf of Mexico. The view is picturesque and the sunsets are magnificent. This attractive complex has 2 beach cabanas, beach chairs, and a courtyard with shuffleboard. There is a recreation room with pool, ping pong, air hockey.