I'll call back later hindgra 100 Children can become intrepid explorers at RHS Wisley, with its Great Garden Adventure: explore air, soil and water, attend grow-and sow-sessions and enjoy outdoor games such as skittles, croquet and races. There's a Selfish Giant's Maze with sound effects at the Royal Pavilion Gardens in Brighton; a children's trail at Trebah subtropical gardens near Falmouth in Cornwall; and the Royal Botanic Garden in Edinburgh is offering a range of holiday activities.