Set amid the immensity of the Kalahari Desert in Botswana, Jack’s Camp has long been a favorite of more-adventurous Harper members, thanks to its flamboyant design, astounding night skies and the otherworldly serenity of its surroundings. Now it has a sister property, Duke’s Camp, which opened in June on a remote 345-square-mile concession in Botswana’s famous Okavango Delta. Only some 200 miles separate the two camps, but their respective locations — the sands of the Kalahari and the water world of the Okavango — could scarcely be more dissimilar. Both were created by legendary safari guide Ralph Bousfield. Jack’s Camp is a memorial to his redoubtable father, while Duke’s Camp is named in honor of Sarefo “Duke” Sarefo, the official custodian of this tract of wilderness, whose forefathers in the Wayeyi tribe have long worked the nearby waters as traditional fishermen.