Rideau Valley Air Park is a registered aerodrome located 3 NM south of Kars, Ottawa, Ontario, Canada on the shore of the Rideau River. The aerodrome has a single 1800 by grass runway, and serves mainly ultralight and glider traffic.

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Rideau Valley Soaring is a gliding club that operates from the Kars/Rideau Valley Air park on a regular basis during the soaring season (April-October). The club members fly both private and club aircraft. The gliding club owns a Grob 103, Schleicher ASK 21 and Schweizer SGS 2-33 training gliders, plus Schweizer 1-34 and Rolladen-Schneider LS4 single-seaters. The club also has two tow planes, a Bellanca Citabria and a Piper PA-25 Pawnee.