Houstonian Trellis Spa
Day SpaHouston, Texas
Upscale day spa at The Houstonian in Houston with 22 treatment rooms, soaking pools and a sundeck; pool access comes with a 50-minute-plus treatment, not a
$$$
Spas with rooftop
4 spas match
The Ritz-Carlton Spa, Los Angeles
Hotel SpaLos Angeles, California
Downtown LA hotel spa at the Ritz-Carlton with massages, facials, a couples suite, rooftop pool and gym; outside guests need to book a treatment to enter.
$$$$The Spa at Four Seasons Hotel Denver
Hotel SpaDenver, Colorado
A hotel spa in downtown Denver with a $150 day pass covering pool, steam room, whirlpool and fitness centre access, open to non-guests.
$$Hive Cancun By G Hotels
Hotel SpaCancún, Quintana Roo
A boutique hotel near Cancún airport with a small wellness wing — pool, jacuzzi, sauna, steam room and temazcal — open to day-pass visitors.
$$$
