PUBLIC LANDS -- The value of a Washington state Discover Pass is going up.

The $30 annual pass, required on vehicles in state parks and many other state lands, also will be valid for a free sandwich at many SUBWAY® sandwich shops.   Most of Eastern Washington is left out of the deal, but if you're headed west of the Columbia River, take your Discover Pass and stay nourished.

The "Walk in the Park" promotion starts Saturday, June 14, (National Get Outdoors Day) and runs through Sept. 30 at all 435 SUBWAY® restaurants in 17 counties throughout Western Washington -- King, Snohomish, Chelan, Clallam, Douglas, Grays Harbor, Island, Jefferson, Kitsap, Lewis, Mason, Pacific, Pierce, San Juan, Skagit, Thurston and Whatcom.

Show your Discover Pass at the shop or at a state park in participating counties to receive a voucher for a free regular six-inch sandwich with the purchase of a regular six-inch sandwich of equal or greater value and a 30-ounce drink.