Pairi Daiza has some islands with ring-tailed lemurs, red ruffed lemurs and black and white ruffed lemurs where you can walk through.
the island with the B/W lemurs is not accessible to the public, the other lemur islands are indeed walk through. The only other zoo in Belgium that I know with a walk through- exhibit is Family park Harry Malter in Gent. their ringtailed lemurs have an accessible greenhouse.
On the island of red ruffed lemurs live some W/B lemurs. Proof: https://plus.google.com/photos/1169...116970377620114308734&authkey=COWh_azNj6-puwE (Sorry, I know it's a bad picture.)
I indeed remember 1 B/W lemur being kicked out of the group and living on the island of the red ruffed lemurs. But essentially the B/W lemurs as a group have a separate island that is not accessible.
