Cruach Mhór

The Big Gun (Irish: An Gunna Mór), at 939 metres (3,081 ft) high, is the ninth-highest peak in Ireland on the Arderin list, or the tenth-highest according to the Vandeleur-Lynam list. It is part of the MacGillycuddy's Reeks in County Kerry, and is also known as Lackagarrin or Foilnabreachaun.

Cnoc na Péiste (Irish for "hill of the serpent"), anglicised Knocknapeasta, at 988 metres (3,241 ft), is the fourth-highest peak in Ireland, on the Arderin and Vandeleur-Lynam lists. Cnoc na Péiste is part of the MacGillycuddy's Reeks range in County Kerry. It is one of only two 3,000 ft peaks in the Reeks with a prominence above the Marilyn threshold of 150 metres, and is the highest summit of the Eastern Reeks. In 1943, a USAAF plane crashed into the mountain, killing all five crew, and parts of the wreckage can still be seen in Lough Cummeenapeasta.

The Black Valley or Cummeenduff (from Irish Com Uí Dhuibh, meaning 'Black Glen') is a remote valley at the southern end of the MacGillycuddy's Reeks mountain range in Kerry, situated south of the Gap of Dunloe and north of Moll's Gap; it is used as a southerly access into the Gap of Dunloe.The valley is usually accessed by driving to Moll's Gap and then continuing east on the R568 road until a small side-road (at V853774, labelled "Gearhasallagh" after the townland), descends steeply north into the valley. The Black Valley is part of the Kerry Way, a walkers version of the Ring of Kerry beginning and ending in Killarney, and is also part of a 55–kilometre loop of the Killarney–Gap of Dunloe–Black Valley–Moll's Gap area, popular with cyclists. The Black Valley is also a southerly access route to the Head of the Gap in the Gap of Dunloe, and to Lord Brandon's Cottage. The Black Valley is also noted for being one of the last places in mainland Ireland to be connected to the electricity and telephone networks due to its remoteness, which happened in 1976.

Eirk Bog is a national nature reserve of approximately 40 acres (0.16 km2) in County Kerry.

The Gap of Dunloe (from Irish Dún Lóich, meaning 'Lóich's stronghold'), also recorded as Bearna an Choimín (meaning "gap of the commonage" or "gap of the little hollow"), is a narrow mountain pass running north–south in County Kerry, Ireland, that separates the MacGillycuddy's Reeks mountain range in the west, from the Purple Mountain Group range in the east. It is one of Kerry's most popular tourist destinations on account of its scenery.

Maolán Buí (Irish for "yellow/golden round knoll"), also known by the name Bearna Rua, at 973 metres (3,192 ft) high, is the fifth-highest peak in Ireland on the Arderin list, or the sixth-highest peak in Ireland according to the Vandeleur-Lynam list. Maolán Buí is also known for its narrow north-west spur, called The Bone. It is part of the MacGillycuddy's Reeks in County Kerry.

Purple Mountain (Irish: an Sliabh Corcra) at 832 metres (2,730 ft) high, is the 21st–highest peak in Ireland on the Arderin scale, and the 28th–highest according to the Vandeleur-Lynam scale. It is located in County Kerry, and is the highest point of the Purple Mountain Group.

MacGillycuddy's Reeks (Irish: Na Cruacha Dubha, meaning "the black stacks") is a sandstone and siltstone mountain range in the Iveragh Peninsula in County Kerry, Ireland. Stretching 19 kilometres (12 miles), from the Gap of Dunloe in the east, to Glencar in the west, the Reeks is Ireland's highest mountain range, and includes most of the highest peaks and sharpest ridges in Ireland, and the only peaks on the island over 1,000 metres (3,300 feet) in height. Near the centre of the range is Carrauntoohil, Ireland's highest mountain at 1,038.6 metres (3,407 ft). The range was heavily glaciated which carved out deep corries (e.g. the Eagle's Nest), U-shaped valleys (e.g. Lough Coomloughra), and sharp arêtes and ridges (e.g. the Beenkeragh Ridge).The range, part of the Reeks District, is a destination for mountain walkers and climbers and includes some of Ireland's most regarded walking routes such as the 15–kilometre Coomloughra Horseshoe, and the 26-kilometre MacGillycuddy's Reeks Ridge Walk that traverses the full range; it is estimated that over 140,000 people visit the range each year. The entire range is in private ownership; however, reasonable access is given for recreational use.

Moll's Gap or Céim an Daimh (meaning, Gap of the Ox), is a mountain pass on the N71 road from Kenmare to Killarney in Kerry, Ireland. Moll's Gap is on the Ring of Kerry route, and offers views of the MacGillycuddy's Reeks mountains, and is a popular tourist location. The rocks at Moll's gap are formed of Old Red Sandstone, which are small quartz grains laid down over 350 million years ago; unlike most of the Old Red Sandstone around Killarney which is stained red by iron oxide, the rock at Moll's gap is stained green by chlorite. Moll's Gap is named after Moll Kissane, who ran a shebeen (an unlicensed public house) in the 1820s, while the road was under construction.Like the nearby Gap of Dunloe, Moll's Gap is an example of a "glacial breach", where a 500 metre deep glacier in the Black Valley broke through Moll's Gap 25,000 years ago during Ireland's last ice age.

Cnoc an Chuillinn (Irish for "hill of the steep slope"), at 958 metres (3,143 ft), is the sixth-highest peak in Ireland on the Arderin list and the seventh-highest peak in Ireland on the Vandeleur-Lynam list. The name is sometimes incorrectly anglicised to Knockacullion, which is a name used for peaks and townlands in other parts of Ireland. Cnoc an Chuillinn is part of the MacGillycuddy's Reeks range in County Kerry.

Upper Lake (Irish: An Loch Uachtarach) is a lake in Killarney National Park, County Kerry, Ireland. It is one of the Lakes of Killarney, along with Muckross Lake and Lough Leane.

Derrycunnihy Wood is a national nature reserve of approximately 336 acres (1.36 km2) located in County Kerry, Ireland. It is managed by Coillte.