I’m looking for a lesser known probably very obscure movie. It is most probably from the 1970s but I’m not sure. It aired on German tv in the 1980s when I was a kid and was already older back then. it’s probably an American or Spanish or Italian or French film. it’s an adventure movie about a treasure hunt on an island most probably tropical. a group of adventurers follows the directions on a map they found in a figurine to a hidden treasure and each time they find the spot this only reveals another map pointing to a new location. this repeats several times. the film has a surreal tone. the group of adventurers face dangers like traps and cannibals and become progressively delusional.
I have not seen this, so this is just a guess, maybe?: