The Palm Jumeirah is an archipelago of artificial islands on the Arabian Gulf in Jumeirah,Dubai in the United Arab Emirates. The islands were created using land reclamation. As the name implies, they were created to resemble a palm tree and are roughly divided into three areas: "trunk", "fronds", and "outer crescent". The trunk is a mixed commercial and residential area, the fronds are reserved for residential homes and villas, while the outer crescent is used for luxury and upscale resorts. Atlantis The Royal, Dubai is a hotel resort at the Palm Jumeirah. The 795 room, 17 restaurant resort has the world's largest jellyfish aquarium.