Estlan sits on the Lashed Peninsula, which protrudes eastward from Impatria into the Great Abyss. The peninsula is covered in windswept grasslands known as the Howling Hills, which gets its name from the sound of the strong ocean gusts. The fields of the Howling Hills have many patches of forest and rocky outcroppings scattered throughout it, many of which act as natural shelter from Estlan's frequent storms. It is usually around these shelters where the region's inhabitants choose to reside, where the wind can't bring down their tents and their cattle can freely graze.
Estlan has quite a few waterways flowing through it, although many are small streams formed from the intense rains that the region sees. Only a handful of these waterways are notably large, with the largest being the Tyfal River. Flowing northward, it eventually reaches the Sjóhval Sea at Mitcur Cove. The Tyfal sees highly variable water levels from the changing tides of the Sjóhval, especially in its downstream regions. The size and central location of the Tyfal makes it a reliable location for the acquisition of drinking water, so it isn't uncommon to see locals nearby. Aside from the Tyfal, the Stagna River is another popular site. Found in southern Estlan, the Stagna's slow-moving waters have made it an ideal area to settle, with Gazardag being established near its source. The Norest River is another major waterway, separating Estlan from the Outlands in Kalvete.
The seas surrounding Estlan have their fair share of natural features. North of the region is the Sjóhval Sea, which is known for its dramatic tides and dangerous storms. These storms bring with them the winds and rains that Estlan is known for, and its tides have shaped most of Estlan's coastline into jagged rocks. The Sundered Islands stretch through the Sjóhval, forming a chain of rocky outcrops that connect the tip of the Lashed Peninsula to a small peninsula of the Outlands. To the south of Estlan, the Shattered Isthmus connects the continents of Impatria and Jalafar across the Azure Channel. Much like the main peninsula's coasts, the islands of the Isthmus consist of jagged rocks.