A bar and public garden 37 floors above the city; the combination of London spread out before you and greenery in the foreground makes for some striking shots.
Time of day
Golden hour and sunset are incredible here. And if you're looking to get in without hordes of people, try booking a table for breakfast at Sky Garden's Darwin Brasserie on a weekend. This gets you in at 8:30am, 90min before standard ticketed entry, and much more likely to have the place all to yourself!
Free, but limited tickets, released every Monday, so plan at least 2 weeks ahead! You can also get in as a walk-in, depending on the day, but this is only available at certain times, so check their website.
Varying hours, check their website at https://skygarden.london/