You know the season has summer has officially begun when The Colonnade Hotel announces its rooftop pool is up and running. This summer-in-the-city go-to is perched twelve floors above the Back Bay with beautiful views in every direction, a full-service bar, all-day menus and luxe cabana rentals. This season it gets even better with al fresco exercise classes (sunrise yoga, anyone?) and live music every Tuesday and Thursday featuring an array of genres (reggae, pop, rock, and R&B) and highlighted adult beverages (thanks to liquor sponsors like Pallini Limoncello and Ghost Tequila). Suit up, slather on the sunscreen and shimmy on down before Labor Day to soak up all of the summer sun. It’s $45 per person from 8:00am-5:00pm and $20 per (21+) person from 5:00-10:00pm during the week; for weekend access, you’ve got to book yourself a cabana. More on that (and everything else) online here.