The Riu Palace Tres Islas has 365 tastefully decorated guest rooms on 5 floors and each bedroom has 2-3 beds, private bathroom, air-conditioning, TV, mini-bar, piped music, telephone, hairdryer and balcony with the majority of the rooms enjoying sea views. The hotel has several suites that provide a living room area and flat screen TV and Balcony.

The hotel offers a choice of board arrangements; meals are provided buffet style with show cooking and themed events that present a wide variety of cuisine. For an additional cost guests have the option to visit the hotel's 'Krystal Fusion' a la carte restaurant. During the day there is a poolside bar serving snacks and a terrace Snack bar. The Tres Islas is popular with many repeat guests, they appreciate the high levels of friendly and efficient service that you would expect from a Riu hotel. Guests staying at the Tres Islas also appreciate the piano bar with its terrace and the lounge bar with evening entertainment.

Onsite there are an array of facilities for guests to enjoy; 2 freshwater Swimming pools (1 heated in winter), whirlpool, 4 floodlit artificial surface tennis courts and tennis school (equipment available), Renova Spa, Gym, Sauna, Hairdressing salon. Children have their own pool (heated in winter) and can join the fun in the mini-club. The Riu Palace Tres Islas is popular and has many repeat guests, who appreciate the high levels of friendly and efficient service you would expect from a Riu hotel.

The Riu Palace Tres Islas has a 24 hour reception, a "Renova" Spa with different treatments and massage (additional charge) Complimentary gym (over 18's), sauna and whirlpool bath, Hairdresser, use of computers with internet access (additional charge), Wireless LAN zone (free of charge), reading room, card games room, shops (boutique, souvenirs, kiosk, jewellery).