The Spa at Canopy by Hilton Cannes
The spa at Radisson Blu 1835 Hotel & Thalasso is endorsed by expert reviewers. Out of 6 professionals that we tracked, 8 mentioned the spa, such as Frommer's, Gayot and Jetsetter.
Canopy by Hilton Cannes 
Frommer's
Gayot
Jetsetter
Star Service Jetsetter
Oyster Gayot
The Telegraph
Frommer's "External guests can also use the spa if they book spa treatments"
Gayot "The spa also includes an expansive fitness center with bodybuilding equipment and personalized fitness sessions and yoga classes"
Jetsetter "Les Thermes Marins Spa and Thalasso certainly knows how to offer the best in pampering"
Star Service "Savvy business travelers will find this a better bet than the JW Marriott Hotel Cannes, and the spa increases this hotel's profile and prestige for vacationers"
Jetsetter "Les Thermes Marins Spa and Thalasso certainly knows how to offer the best in pampering"
Oyster "Travelers looking for a less expensive option in the area could check out the Eden Hotel, which also has a spa, restaurant, and pools"
Gayot "The spa also includes an expansive fitness center with bodybuilding equipment and personalized fitness sessions and yoga classes"
The Telegraph "This swish spa hotel rebuffs retro and opts for contemporary class and a peaceful, light-filled look"
