Iso Linnamäki ylävallin polku is a very short hiking loop of about 0.3 km along the upper earthworks of Iso Linnamäki, the great castle hill beside Old Porvoo and the Porvoo River in Porvoo, Uusimaa. For protection status and the hill’s place in Porvoo National Urban Park, start with the City of Porvoo’s significant-si...
Either direction on this short loop; join neighbouring segments counter-clockwise or clockwise depending on which connecting path you used.
Route direction
Open / Good Condition
Open / Good Condition
Run
Activity
Hike / Walk
Activity
0.3 km
Distance
About 10–20 minutes for the loop and photos; longer if you link other Iso Linnamäki paths or walk from Maari and the river.
Est. Time
Dirt
Surface
Loop
Route Type
Moderate Traffic
Traffic
Partial Shade
Shade
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Our data was researched from Porvoo, and other trusted sources, in March 2026. Our route / place GPX data comes from Metsähallitus / Lipas, last updated March 2026. Always check their official website for safety-critical updates.