The five star Hilton Diagonal Mar Barcelona Hotel is located 300 metres from the beach, 15 minutes' drive from central Barcelona and opposite the convention centre.

This Hilton hotel offers standard guest rooms of 30 square metres with city or sea views, desk with ergonomic chair, wi-fi or high-speed internet and 28” plasma television. Junior suites are 46 square metres with living room, working area and city or sea views. Suites are 66 square metres and offer city or sea views, separate living, dining and work rooms and executive lounge access with free breakfast and refreshments. There is a bathroom with jacuzzi. Executive rooms are 30 square metres and have executive lounge access. Deluxe rooms are 38 square metres and offer city views, a seating area with sofa and a bathrobe. The 'Boutique' rooms are 31 square metres with resting, refreshing, relaxing and working zones. There is an armchair with ottoman and bathroom with hydro spa. Some rooms have city or sea views.

Facilities at the Hilton Diagonal Mar Barcelona include the 'Indigo' restaurant and terrace with Mediterranean views and an extensive wine list. The 'Pistaccio' lobby bar and lounge is an informal bar. The 'Brisa' pool bar and terrace offers a contemporary outdoor terrace with Mediterranean trees and sea views. The hotel offers room service 24 hours a day with Kosher and vegetarian options are available. Other facilities at the hotel include a gym, outdoor pool, sun terrace, giant chess. The Hilton Diagonal Mar Barcelona has ten meeting rooms with wireless internet access for two to 1,000 guests and a business centre.