On a practical note:
Gear: Glendalough takes lots of nuts, cams, hexes and the odd tri-cam. One good set of nuts (doubled up on the popular sizes), one set of cams, trad quickdraws, extenders and a few slings / krabs and of course your personal climbing gear (belay / prussic..etc).
Ropes: 60m half ropes are generally best, but a single 60m can be used at the single pitch crags.
Abseiling: Getting off the tops of the most of the routes requires solid abseiling skills. As always treat any in-situ anchors as you should all anchors, give them a good test, understand why you can / can’t trust them and if in doubt then back them up. Always put knots in the ends of your ropes.
Word of Caution: When abseiling off the top of the main face with 60m half ropes be aware that all ropes have different levels of stretch, therefore your ropes may not touch the ground! It may be necessary to trend leftwards at the bottom to reach the ground.
Access: Park in the Glendalough Upper car park and walk 30mins into the crag. Be aware that the car park closes at different times depending on time of year!
Anchors: Most of the routes in Glendalough require a broad traditional climbing skill set as often times the anchors are built from protection. There are no bolted anchors in Glendalough.
Clothing: On a fine day with little winds climbing in Glendalough can be a glorious experience. However, it is a mountain crag and windchill does play a role therefore ignore this at your discomfort.
Place to stay: Laragh and Glendalough has many options for accommodation – from the Irish Mountaineering Club Hut to the Glendalough Hostel to the Glendalough Hotel and a host of B&B’s. Be warned that during busy Summer months it may be difficult to find accommodation. There is no wild camping allowed in Glendalough National Park.
Hints and Tips: Some of the single pitch routes in Glendalough are obvious but good route finding is required for some of the multipitch routes. There are lots of goats and deer in the area of the main face therefore there are lots of ticks during the season – be cautious and carry out a self check when at home in the shower.
When to visit: Rock Climbing in Glendalough is available all year – Jan / Feb tends to be quite wet and not appealing, but even during this time it is possible to steal a beautiful day at the crag.