Okavango Park

A coaster over the flooded Okavango Delta: off a baobab island, skimming a clear channel beside the mokoros, onto an island of wildflowers and elephants, high over the floodplain, round a tall acacia and down to a safari lodge on stilts.

• Series: Coasters
• Length: 1.5 km
• 20 marbles a race, about a minute; every race is free