Bunker B132 near Särkilammi is a reinforced concrete dugout built for a 45 mm anti-tank gun and machine gun, forming part of the Salpa Line. Though locked, it remains an impressive example of Finnish WWII fortifications, with original features like an observation dome, emergency exit, and accommodation for 20 soldiers. The bunker’s interior includes restored benches, a well, and uncamouflaged gun walls. It's located in forest terrain off Kirpuntie, suitable for trekking or cross bikes, though be prepared for uneven paths. If visiting during an open event, bring a torch and sturdy shoes—interiors can be dark, cold, and slippery.