Aulanko Tower Trail
Aulanko Tower Trail 22 km
Hämeenlinna (Katajistonranta, Aulanko)
Race guide
Updated 29 June 2026
The Aulanko Tower Trail 22 km is a scenic trail race held in the Aulanko nature reserve just outside Hämeenlinna, Finland. Starting and finishing at Katajistonranta on the shores of Lake Aulanko, the course threads through one of southern Finland's most beloved forested landscapes, accumulating 690 metres of elevation gain over 22 kilometres — a moderate but persistent challenge that keeps legs honest throughout. With a high point of just 159 metres above sea level, this is not a mountain race, but the repeated rolling climbs through dense Nordic forest demand respect, particularly on tired legs in the latter half. The race suits runners transitioning from road or parkrun backgrounds into trail, as well as experienced trail runners looking for a fast, well-groomed forest course. The single cut-off — back at the finish by 18:00 on Saturday — gives competitors a generous window, but the terrain rewards those who run with control and consistency rather than early aggression.
Course & Terrain
The Aulanko Tower Trail 22 km is routed entirely within the Aulanko nature reserve, a mix of maintained forest paths, rocky single-track, and the occasional gravel track that threads between the reserve's lakes and ridgelines. The forest floor is typically rooty and can be uneven underfoot, so trail shoes with solid grip and a protective rock plate are strongly recommended. The course begins and ends at Katajistonranta (94–99 m elevation), keeping the overall profile relatively low-lying but packing in 690 m of cumulative ascent through a series of short, punchy climbs rather than any single long grind. The high point of 159 m is modest in absolute terms but is reached via climbs that arrive frequently enough to prevent any real recovery on the descents. Expect a mix of open ridge lines with views over the lake system and tight, shaded forest corridors. Footing varies — some sections are well-maintained trail, others are natural forest floor that can become slippery after rain. Poles are not typically necessary but runners who rely on them for balance on technical descents may find them useful.
Decisive Climbs & Where the Race Is Won or Lost
With 690 m of gain spread across 22 km, the course averages roughly 31 m of climb per kilometre — enough to make every uphill count without any single ascent being truly long. The high point at 159 m represents the race's most elevated section, and the approach to it and the descent away from it are likely to be the moments where gaps open between runners. Controlled effort on the climbs — keeping heart rate in check rather than charging — pays dividends in the final third of the course when the cumulative load of the rolling terrain really begins to tell. Because there are no intermediate checkpoints, runners cannot rely on seeing a crew or support until the finish. The back half of the course, roughly from 12–13 km onwards, is where pacing errors made early become costly. Runners who go out too hard on the first set of climbs will find the return legs through the forest increasingly difficult. Focus on even effort, not even pace, and treat every uphill as an opportunity to manage heart rate rather than gain time on competitors.
Pacing & Fuelling Strategy
With only a start/finish crew point and no intermediate checkpoints, you are self-sufficient between the gun and the finish line. Carry all the nutrition and fluid you expect to need for the full 22 km — in Finnish summer conditions this typically means a minimum of 500–750 ml of fluid plus gels or real food to cover 90 minutes to 2.5 hours of running depending on your level. Err on the side of carrying slightly more than you think you need, since there are no bail-out resupply points on course. For pacing, approach the first 10 km conservatively, using the climbs as natural opportunities to hike briskly rather than run hard. The course's rolling nature means there is rarely a long flat section to truly settle into a rhythm, so mentally plan for constant gear changes between running, power-hiking, and controlled descending. Save something for the final 5 km back to Katajistonranta — the finish at 94 m elevation is slightly lower than the start, which offers a marginal late-race advantage if your legs are still turning over well.
Conditions to Expect
Aulanko Tower Trail takes place in the Hämeenlinna region of southern Finland, and race day conditions depend heavily on the time of year the event is scheduled. Finnish forest trails can be wet and muddy through spring and early summer, with standing water in low-lying sections and slippery roots after rain. By late summer the trails tend to firm up but can become dusty and loose on descents. Temperatures are generally moderate — southern Finnish summers rarely bring extreme heat, but humidity in the forest can make effort feel harder than the numbers suggest. Be aware that the forest provides welcome shade on warm days but also holds moisture, meaning trails stay wetter for longer after rainfall than open terrain would. Check the forecast in the days before the race and adjust your shoe choice and layering accordingly. Light wind and overcast skies are the most common race-day conditions in this part of Finland, but a lightweight packable layer is worth tucking into your vest against the possibility of a summer shower mid-race.
Race Aulanko Tower Trail 22 km with Crux
Get the strategy, fuelling and crew plan dialled for this exact course — built from the real route, climbs and cut-offs. Your first race is free.
Plan this race — freeCourse profile
Checkpoints & cut-offs
✓ Course data verified against the official source (2026-07-05) · official source
0 km · 99 m · —
7 km · 111 m · —
16 km · 81 m · —
22 km · 94 m · Sat 18:00
More races
More Trail Tour Finland
More in Finland
Similar distance (20–50 km)
Racing Aulanko Tower Trail 22 km?
Get a complete race strategy — pacing, fuelling, crew plan and the crux moments — built on this exact course.
Plan your race in Crux →Strava is your training. Crux is your races.