North Sumatra is one of Indonesia's last surfing frontiers. "North Sumatra" consists of 5 islands or island groups: Hinako Islands, Nias, Telos and 2 other obscure island groups to the north. North Sumatra receives similar swell to Mentawais and enjoys its peak swell season from May to September. Despite Indonesia's reputation for hollow lefts, in North Sumatra right-handers are slightly more prevalent. While Lagundri Bay at Nias has been surfed for decades, it is the more obscure rights like Bawa (a Sunset-like right bowl that holds up to 15 feet) and Treasure Island (a long, hollow, mechanical right peeling for 200 meters) that have attracted the attention of late. Throw a mix of hollow and bowl lefthanders into the picture like Asu, Afulu, the Machine, and many more obscure rights and lefts.

In contrast to the small island of Bali, North Sumatra province is large with one of the biggest lakes in the world, Toba Lake, at its navel. The continuous mountain of Bukit Barisan, which extends from Aceh at the tip of Sumatra island to Lampung at the bottom of the island, guards the province on the west side, providing home for thick, tropical jungles and lush vegetations. As you go down the western mountains towards the beaches of the east, mountain streams, strong rivers, and gorgeous waterfalls will accompany you.