Lake Ewauna serves as the headwaters of the Klamath River in downtown Klamath Falls, with water flowing in from Upper Klamath Lake via the Link River. The lake's water level remains constant throughout the year, controlled by releases from Keno Dam 18 miles downstream.

The primary access point for paddlers is at Veterans Park in downtown Klamath Falls. The boat launch ramp is located on the west end of the park, accessible via George Nurse Way. This launch provides convenient access for both guided tours and independent paddlers.

The lake is particularly appealing for evening paddles, with guided tours operating along the west bank near the Nature Trail. Wildlife viewing opportunities are abundant, with regular sightings of egrets, ospreys, bald eagles, shorebirds, and various waterfowl species. The Klamath Wingwatchers' Trails parallel portions of the shoreline, offering additional wildlife viewing perspectives.

Paddlers should be aware that submerged logs can present a hazard, particularly in spring when some logs rise to the surface. These are remnants from the lake's history as a log pond for lumber mills throughout the 20th century. The last floating logs were removed in the 1990s, but many remain on the lake bottom.

The lake offers an ideal environment for beginners, with generally calm waters. Local outfitters offer guided evening kayak tours lasting approximately 2.5 hours, typically launching at 6:30 PM. The lake's location near downtown Klamath Falls makes it convenient to combine paddling with dining at nearby restaurants.

Lake Ewauna has served multiple roles in the region's history, transitioning from an industrial site supporting lumber mills to today's recreational resource. The lake continues to support various water activities, including crew rowing, with the Ewauna Rowing Club using the lake for practice and competition since 1970.