Where is HorseIsle Quiz?

Barnabas' isle challenge (Treeton)Cadee's Grammer Challenge (Jungle isle near tropicton)Caelin's horse Breed Challenge (Treeton)Epona's Horse Breed Quiz (Epona is a horse, and she can be found on Igneaous Isle. She is in between many rocks and palm trees around the middle of the isle.)Hans' horse Breed Challenge (Cantle meadows)Hans' Second Horse Breed Challenge (Cantle meadows)Mary Molasses's Horse Breed Quiz(Earton)Omand's Horse Isle Quiz (Tropicton)

Vianca's Game Challenged (Treeton)