Fancy chilling out in a rooftop botanical garden with a view, while being serenaded for free by emerging musical talent? Yep, us too. Crossrail Acoustic Sessions run every Saturday afternoon until the end of July in the award-winning Crossrail Place Roof Garden. Street performance organisers Busk in London have hand-picked some of the best buskers out there so you just need to sit back and enjoy the music - whatever the weather. Check the website for details of performers.