Parking
Use the designated Yr Ysgwrn Car Park at the start and finish. Do not block field or residential entrances.

Eryri National Park, WA
A one kilometre farm loop past a poet's historic farmhouse
Overview
Rhos Grwm is a circular walk of 1 km in total, starting and finishing at Yr Ysgwrn Car Park and crossing the farmland of Yr Ysgwrn. Allow about 30 minutes (0.5 hours). It is graded easy, and it is a short farm-and-history stroll rather than a big mountain hike.
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Eryri Tour Guide
Parkwolf is a GPS audio tour guide for Eryri National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
Recorded for this trailhead
Yr Ysgwrn and Hedd Wyn“You're approaching Yr Ysgwrn, the hillside farmhouse where poet and shepherd Hedd Wyn lived. His poem won the National Eisteddfod's chair in 1917, but he had been killed at Passchendaele before the ceremony.”
Plays as you drive up to this trailhead in the Parkwolf Eryri Tour Guide.
More stories near here in the app
Trail guide
The route is predominantly well-formed track or path, with some steps or gently undulating surfaces. Trainers or comfortable walking shoes are suitable.
Yr Ysgwrn is a historic traditional farmhouse associated with the Welsh-language poet Hedd Wyn, and the walk passes in front of it. The viewpoint path gives views over the Trawsfynydd area. The route is a good choice for history and a picnic.
Use the designated Yr Ysgwrn Car Park, where the loop begins and ends. Do not block field or residential entrances.
Dogs are not allowed on this walk.
The separate Ffridd Route at Yr Ysgwrn is a longer option: a 5 km circular walk taking about 1 hour.
Wildlife
77 sightingsGrey HeronMost seen around 7 AMSighting map
17 sightingsTawny OwlMost seen around 6 AMSighting map
32 sightingsCommon RavenMost seen around 8 AMSighting map
21 sightingsGreat Spotted WoodpeckerMost seen around 7 AMSighting map
18 sightingsEuropean RabbitMost seen around 7 AMSighting map
161 sightingsViviparous LizardMost seen around 10 AMSighting mapSighting maps show where each species has been reported across Eryri. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ModerateLlyn Trawsfynydd Circular13.8 km · 4.5 hr · 1.8 km awayFull circuit of Wales's largest reservoir, with one sharp dam climb
ModerateBwlch Drws Ardudwy6.8 km · 3 hr · 5.9 km awayBoulder-strewn climb to the gap between Rhinog Fawr and Rhinog Fach
EasyGraigddu Woods5 km · 1 hr · 5.9 km awayQuiet plantation loop to a small waterfall and southern mountain views
ChallengingRhinog Fach and Y Llethr Circular14.5 km · 6.2 hr · 5.9 km awayTwo rugged summits above dark Llyn Hywel on rough, pathless ground
ChallengingRhaeadr Ddu Waterfall Walk (Ceunant Llennyrch)1.6 km · 1 hr · 7.3 km awaySteep mossy oakwood loop down to a hidden waterfall and ravine
ChallengingRhaeadr Cynfal Waterfall Walk2.3 km · 1 hr · 7.4 km awayShort, steep out-and-back to a Victorian platform above a mossy gorge
EasyCefndeuddwr Trail1.3 km · 45 min · 7.8 km awayEasy surfaced loop through boulder woodland to a picnic viewpoint
ChallengingGain Waterfall Trail6.8 km · 2 hr · 7.9 km awaySteep forest loop to twin waterfalls and old Gwynfynydd gold workings
Sight · 0.2 km awayYr YsgwrnA preserved farmhouse where Welsh poetry meets wartime memory
Sight · 3.5 km awayLlyn TrawsfynyddOspreys, wild brown trout and an eight-mile loop around dammed water
Sight · 7.3 km awayBryn Cader FanerA spiky Bronze Age cairn crowning a lonely Rhinogydd hillside
Sight · 7.4 km awayPistyll CainA thunderous forest waterfall reached by an easy-moderate river walk
Sight · 7.4 km awayRhaeadr MawddachA rain-fed cascade beside old gold workings in deep woodland
Visitor center · 7.9 km awayCoed y Brenin Visitor CentreBritain’s first purpose-built mountain-bike centre, now a quiet trailhead
Sight · 8.6 km awayRhinog FawrA rough-edged summit with big views and a wilder feel.
Sight · 10.4 km awayRhaeadr Ddu (Black Falls)Two mossy cascades drop about 60 feet through ancient oak woodlandParkwolf’s Eryri ranking