The Glen is one of the most interesting natural phenomena on the Coolera peninsula: a narrow, deep and long chasm on the south face of Knocknarea. This cleft in the mountain runs for about three quarters of a mile and is more or less uniform in depth (60ft) and width (40ft). If you’re looking to get away from the hustle and bustle of life with a step into nature, the Glen is a must do in Strandhill.
The vegetation in the Glen is luxuriant and its flora has made it an attraction for botanists from near and far. The sycamore, the beech, the Scots pine and and the oak all flourish here. The hazel, the holly, the honeysuckle and the bramble-bush also thrive between the cliff faces. There is an abundance of ivy throughout, whilst one of the most striking features of the vegetation is the extreme heights attained by both the fern and nettle families.