In a continent with 30,500 kilometers of coastline, it is a bold claim, but agent Pola Jocum, from Hamptons International, reckons the heartbreakingly beautiful Camps Bay in Cape Town on South Africa’s Atlantic Seaboard, is Africa’s most Instagrammed beach location.   The suburb is a hot spot for celebrities, locals and international visitors to kick back over the summer with a cocktail and a meal in one of its many fashionable restaurants, after a long day of surfing, sunbathing, hiking or cycling.   Ms. Jocum calls Camps Bay the poshest holiday resort-styled suburb in Cape Town, but it is also a laid-back area full of nature and popu...