The best cycling routes around Lisbane

Nendrum Monastery was a Christian monastery founded in the 5th century. The monastery finished somewhere between 974 and 1178, but the church survived until the 15th century. You can visit the ruins if you're riding past.

Sketrick Castkle is a historic landmark situated on Sketrick Island near Whiterock. The castle dates back to the 12th century and the grounds are free to explore.

This tower-house, said to have been built in 1570 by an English soldier, Captain Browne, is badly ruined but is still of considerable interest. Rectangular and fairly small in ground plan, it was entered by a door in the north-west wall which has a draw bar socket and a murder-hole. To the left of the door was a stair to the next floor. There are two ground floor rooms, the larger with a semi-circular vault built on plank centring and the smaller with a pointed vault built on paired wicker mats. The smaller room, once thought to be a secure boat bay, may be just a storeroom (compare nearby Sketrick). There were two storeys above, but the upper parts are ruined. Part of the bawn wall survives to the south-west, cut into the hill.

Ballydorn, or 'The Dorn' as it is locally known, is a beautiful and popular mooring ground with a short-stay pontoon attached to a permanently moored lightship called The LV Petrel that is now the Down Cruising Club headquarters. The LV Petrel was commissioned by the Commissioners of Irish Lights in 1913, and built by the Dublin Drydocks Company. This Lightship spent most of its previous working life at Blackwater Bank on the River Blackwater, Wexford. It was then sold in 1968 to Hammond Lane foundries in Dublin, before being saved to use as the cruise club HQ. The boat is registered as a national historic ship in the UK.

This large tower house was built in the mid 15th century and was actively involved in warfare during the 16th century. It would have originally been four storeys high with a boat bay and subterranean passage. There were four chambers at ground level, the largest had a vault built on wicker centring and two ovens. The small unlighted room could have been a lock up or treasury. The tower-house was relatively complete until half of it collapsed in a storm in 1896. Part of the bawn wall survives to the north and east of the castle.

Ringhaddy Sound is located on the western shore of Strangford Lough to the west of Islandmore. With its unusual swollen hills it is a real joy to cycle. Descend into the sound, and enjoy the atmosphere. A Castle ruin and Church sit further on the Peninsula, but alas they are on private land. It is possible to arrange access from the land owner however. There is also a Beautiful mooring with a Boat Club that has full facilities if needed. Heres a bit about the Castle. This is one of the most completely surviving tower houses in the county, retaining its gables and formerly an original wooden window. There were at least two main phases of construction at this site. The ground floor, which had a stone vault, dates from the 15th century, while the upper parts were rebuilt in about 1600. It is rectangular in plan with small turrets at the north-east and south-west angles, one with the stair and the other with a latrine chute. There are large fireplaces on the first and second floors, and an attic in the roof. A distinctive stone rainwater spout projects from the east side. The castle seems to have changed hands between Bryan McArt and the English in the early 16th century, and it is likely that the earlier castle was McArt’s stronghold, slighted when he withdrew, and rebuilt by the new English owner. Underwater investigation has confirmed the presence of a stone slipway beside the castle, and water transport was clearly of great importance in this location.

WWT Castle Espie is home to the largest collection of ducks, geese and swans in Ireland. Wide open spaces, and wetlands full of the sights and sounds of nature. Surprised by just how much there is to see and do including a Cafe / Gallery, plenty of walks, and places to just sit and take it all in.

This is the best example in Northern Ireland of a pre Norman ecclesiastical enclosure with its buildings. Nendrum is associated with St Mochaoi who died at the end of the 5th century, and is linked with St Patrick in a much later source. Notices of Nendrum clergy, including three bishops, begin in the 7th century and the excavation of a sophisticated tide mill on the shore near the site has shown that the mill was active in the early 7th century, which underlines the early importance of Nendrum. References continue until a fire in 976, perhaps a Viking raid, when the head of the church (erenagh) was burned in his house. In the late 12th century a small Benedictine monastic cell was founded on the site, but by 1302–1306 this was the parish church, abandoned for Tullynakill on the mainland in the 15th century. H.C. Lawlor excavated the site from 1922 to 1924, when enclosure walls, church and round tower were restored. The glacial hill is crowned with three concentric walled enclosures, irregularly oval in plan. Little is known of the outer cashel, only partly in state care. In the middle cashel on the south-west side are circular platforms for huts, which excavation suggested were craft workshops, and a rectangular building known as the ‘schoolhouse’, also a workshop. In the inner cashel were the most important buildings, including the church with its graveyard and the base of a round tower north-west of the church. The west wall of the church was rebuilt in the 1920s, incorporating a reconstructed sundial at the south-west corner. Finds from the 1920s excavation, including the well-known bell of Nendrum, are in the Ulster Museum and Down Museum at Downpatrick. Underwater archaeological work in the 1990s showed that there is a stone jetty south-east of the enclosure, now inundated in the lough, and medieval pottery was found close by. ( source: department of communities )