In search of the treasure at Los HerviderosBassie & Adriaan: Het geheim van de schatkaartAs soon as Bassie and Adriaan arrive on Lanzarote, they go in search of the treasure. The first place they visit is Los Hervideros. Adriaan tells in the series that this is the north of the island of Lanzarote, in reality this location is in the west of the island. It can be busy because of the many tourists, but it is worth a visit.