The Mandarin Oriental's rooftop bar overlooking Passeig de Gràcia offers spectacular evening views of Barcelona with Spanish-influenced cocktails. The seasonal terrace draws both hotel guests and Barcelona's fashion crowd for sundowners and late evening drinks.
Boom Boom Room sits atop the Mandarin Oriental hotel on Passeig de Gràcia in Barcelona's Eixample district, offering one of the most elevated rooftop perspectives available on Barcelona's cocktail circuit. The terrace looks out across the upper reaches of Passeig de Gràcia's modernist façades, with Antoni Gaudí's La Pedrera and the competing architectural statements of the Manzana de la Discordia forming the backdrop for evening drinks. The bar operates as a seasonal venue, typically from spring through early autumn, when Barcelona's climate permits outdoor drinking well into the night. The cocktail list draws on Spanish-influenced ingredients—local vermouths, aged rums connected to Balearic production, and Catalan spirits—alongside internationally recognized classics adapted for the rooftop setting. Signature cocktails are priced between €18 and €26, and the champagne and sparkling wine selection is calibrated for celebration-level spending. A food offering of light tapas and sharing plates extends the bar's function beyond a single-drink stop, making it viable as a full evening destination for those arriving for dinner hours and staying through to midnight. The crowd reflects the hotel's brand positioning: guests in their 30s and 40s, visitors who have researched Barcelona's rooftop bar options, and Barcelona's fashion and design community for whom Passeig de Gràcia is familiar territory. Dress expectations are smart-casual to polished—the Mandarin Oriental context sets a standard above most Barcelona bars, and the sunset window draws a particularly well-presented crowd. Reservations are strongly recommended for the 8-10 PM period, which consistently books out as guests converge for golden-hour views over the boulevard. Non-hotel guests may access the bar when space permits, though priority is given to reservations.
Good to know
- Signature
- Views and signature cocktails
Highlights
- Rooftop terrace above the Mandarin Oriental with views over Passeig de Gràcia's modernist skyline
- Spanish-influenced cocktail list: local vermouths, Balearic-connected rums, Catalan spirits at €18-26
- Golden-hour sunset viewing from one of Barcelona's most sought-after rooftop positions
- Light tapas and sharing plates extend the bar into a full evening dining and drinks destination
- Fashion and design crowd drawn by the Passeig de Gràcia address and hotel brand association
Tips for visiting
- Book a reservation for the 8-10 PM sunset window—the most competitive time slot of the evening
- Mid-week visits offer a more relaxed atmosphere and better chance of walk-in access
- Budget €18-26 per cocktail; factor champagne pricing if arriving for a celebratory occasion
- Arrive a few minutes early to secure the best-positioned seats with unobstructed views
- Dress smart-casual or better—the rooftop atmosphere and hotel association reward appropriate presentation
Frequently asked questions
Is Boom Boom Room open year-round?
The rooftop terrace operates seasonally, typically from spring through early autumn. An indoor bar option at the Mandarin Oriental may be available outside the season, but the rooftop experience depends on Barcelona's weather.
Can non-hotel guests visit Boom Boom Room?
Non-hotel guests can access the bar when space allows, but reservations are strongly recommended for peak periods and the sunset window. Walk-in access is more feasible on quieter weeknight evenings.
What is the dress code at Boom Boom Room?
Smart-casual is the expectation. The bar's position on Passeig de Gràcia and its Mandarin Oriental setting establish a standard above that of typical Barcelona bars—casual beachwear or sportswear would be out of place.
Is Boom Boom Room primarily a cocktail bar or a dining venue?
The primary focus is cocktails and the rooftop view, but light tapas and sharing plates are available, making it suitable for longer evening stays that combine drinks and light dining.