Irelands Highest 100 Hiking Series Challenge


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1 Day
Tour Details present Highest 100 Irish Peaks Hiking Series

**After payment, a registration form will be emailed to you (or you can click on link here). Once completed, details of meeting point will be issued.** 

There’s absolutely no need to commit to or be available for them all on the first run though. (We’ll still invite you to the party at the end!)

Sign up to what suits you, see how you go and build up your bank slowly, one summit, one step at a time.

The Leinster round is beginner friendly too so it’s a great way to dip your toes in the water!

Walks will leave their meeting point at 10am sharp unless alternative time is given in your booking follow up email. Aim to arrive by 9:45am to allow time to put on boots, gaiters etc.

Groups will be limited in size to 10* people for myriad reasons, including:

  • Safety
  • Sustainability
  • Ease of the chats
  • An opportunity to learn from us along the way

You will be guided by qualified, experienced Mountain Leaders.

  • €40pp per non-technical hike. (Choose click & collect, don’t pay for shipping).
  • Sign up for 5 Hikes together and get the 5th one FREE at checkout using code: 100HIGH5
  • Do 1 Clean Up Day (organised by us on Great Sugarloaf/Bray Head), get 1 FREE Leinster Hike. Code supplied afterwards.

There are some t&cs, notably:

  • Registration form must be completed and terms & conditions accepted. Booking is not confirmed until both payment and completed booking form are received.
  • We operate in accordance with the principals of ‘Leave No Trace’.
  • Dogs are not permitted, not even on lead. (We love our dog too, but the sheep, wildlife and the farming community request that we leave them at home.) Watch this.
  • We operate a ‘No Boots? No Hill. No Refund’ policy for your safety.
  • Minimum Age: 16+, minors must be accompanied by an adult responsible for them.
  • Good standard of fitness and mobility is required.

*The standard practice ratio of ML to participant is 1:12. There may be fewer places available on some, more technical hikes. €55pp per technical hike. We will not be using technical routes in the Leinster round.

The Highest Hundred List is not as straightforward as first appears.


This list of the Highest 100 mountains in Ireland, is the result of collaboration between the late Joss Lynam, Simon Stewart and the team at and the staff and members of Mountaineering Ireland.  The award-winning guidebook, Irish Peaks, is a wonderful collection of 72 hill-walking routes encompassing these. Our own routes to these summits, may not necessarily follow these.

If you clicked the link, you might notice some well-known, high mountains don’t seem to feature. This is because, to be categorized as one of the Highest 100, the summit of the mountain must have a ‘prominence’ of at least 100m. In other words, it needs to be a distinct peak in its’ own right. So, if you are standing on one high mountain, you need to descend and then climb up again at least 100m for that second summit to have a prominence of 100m.

There are other lists of mountains that hill-walkers like to bag. You may have already heard of Munro bagging in Scotland – there are 284 of these 3,000ft (914m) peaks! In Ireland, we also have the 273 Vandeleur-Lynams (600m+) and the 406 Arderins (500m+ with 30m prominence). Naturally, over the course of our routes, we will tick off a good portion of those too. Who knows where this might lead?

Departure Time

To get involved click the Booking Button for more!

Price Includes

  • Mountain Guide

What you need to bring

  • Suitable footwear- Hiking Boots
  • Lunch for the day - Plenty of food and water - 1-2 litres
  • Walking trousers or leggings (no jeans/cotton)
  • Insulating layers such as fleece or wool and a jacket
  • Plenty of Layers, Waterproof jacket and trousers
  • Backpack
  • Waterproof jacket and trousers
  • Hat and gloves
  • Head torch
  • Sunscreen