Meanwhile gardens in Ladbrooke grove is lovely for that - not sure if its still there though, last time I heard it was sinking into the ground or something :s
They have just redone meanwhile 2, im not sure about Meanwhile, stockwell is great if your reasonably confident on a board and just want to bomb round and carve but cant skate bowls
They have just redone meanwhile 2, im not sure about Meanwhile, stockwell is great if your reasonably confident on a board and just want to bomb round and carve but cant skate bowls