malealea lodge ("hotele" ea malealea)

It works like this: although visitors come here to hike, camp, trek, sight-see, etc.--and the lodge will provide a list of trails and sight-seeing spots, and the like--the activity remains pony trekking. The lodge acts as middle person for local horsemen, who actually own the ponies used, and receive the bulk of the money. Their website will provide you with further information.