Climbed Slieve Elva in May 2016, on two occaisons. Slieve Elva is very spongey as many have mentioned previously, this is due to the fact it is a peat bog. Peat is very wet meaning sphagnum moss is primarilly the main vegetation as well as in parts heather and grass. The moss makes walking feel more difficult as you are having to push yourself upwards and forwards with every step. It can get particularly boggy in areas, usually around the lighter green mosses. If you see any bright green moss walk around it as you could be waist deep in brown sludge (peat)! Slieve Elva is cut for fuel production in certain areas so be particularly careful for crevasses in the ground. I would walk around these too as vertically below the edge of the cuttings, is more bog that you don't want to be stepping in. I would advise walking on the dry grass areas and heather areas as the rooting is much deeper than moss making it more stable for walking. However, when at these crevasses grass may cover bogs so jump a few feet over the edge to the middle and similarly when getting out. Beautiful views from the summit; the Burren, Aaron Islands and Cliffs of Moher. Linkback: https://mountainviews.ie/summit/906/comment/18521/