See Massive Sand Dunes

It looks like the Sahara went into the witness protection program, and moved to northern Saskatchewan. The Athabasca Sand Dunes is the largest active sand surface in Canada and one of the world’s most northerly major sand dunes. It stretches for 100km along the shores of Lake Athabasca, and much like stark deserts in Africa, contains no communities, services, roads or facilities. The dunes, reaching 30m high and 1500m long, are part of a fragile eco-system and protected within a provincial park. Access is by floatplane only, and camping is allowed in designated areas.