Overview
Randalstown sits on the western bank of the River Main, a short drive south of Antrim and within sight of the expansive Lough Neagh. With a population of just over 5,000, this Conservation Area town blends a quiet residential charm with a surprising depth of heritage and nature. Designated a Conservation Area in 1996, the streets retain much of their historic character, anchored by a striking seven-pier railway viaduct and the sprawling 172-hectare Randalstown Forest Nature Reserve. Good road links via the M22 and A6, plus regular Ulsterbus services, make it an ideal base for exploring north Antrim.
History
Originally known as An Dún Mór (“the great fort”), the settlement grew around a medieval motte-and-bailey on the river’s west bank. In the 14th century, the O’Neills of Clannaboy erected Edenduffcarrick, later renamed Shane’s Castle, establishing a lasting link between the town and the surrounding estate. The name Randalstown was formally adopted in 1667 to commemorate the marriage of Randal MacDonnell, 1st Marquess of Antrim, to Rose O’Neill.
The town has deep revolutionary roots. The 1798 United Irishmen rebellion began in Antrim following a pivotal meeting to prepare for revolt at McClean’s Inn in Randalstown. By the 19th century, the town had earned the nickname “Iron Mills” due to local iron production, later joined by the Old Bleach linen mill established in 1864. A turbine-made memorial near the viaduct commemorates this industrial era, alongside the iconic red-brick chimney that still punctuates the skyline.
What to See & Do
Railway Viaduct and Greenway
The viaduct dominates the eastern approach to town. Its 1855 stone arches, designed by Charles Lanyon, were built to carry the Belfast and Northern Counties Railway over the River Main. After the line closed in the 1950s, the structure was converted into a smooth, level walkway and cycle path. It now forms the backbone of the proposed Randalstown-to-Toome Greenway, a 9-mile traffic-free route that will eventually link to the Lough Neagh shoreline and connect with wider regional cycling networks.
World of Owls and Randalstown Forest
Randalstown Forest Nature Reserve, originally a deer park for Shane’s Castle, is a mixed woodland of Sitka spruce, Norway spruce, European larch, and broadleaf varieties like oak and ash. The reserve is home to the World of Owls Centre (Eagle Divers NI), Northern Ireland’s only owl, bird-of-prey, and exotic-animal conservation hub. Visitors can explore indoor and outdoor enclosures, watch daily feeding demonstrations, and learn about native raptors. The forest also offers marked lakeside trails, a deer park, and a wildfowl refuge.
Antrim Castle Gardens
A short drive north on the Randalstown Road lies the 400-year-old Antrim Castle Gardens. Highlights include 17th-century Anglo-Dutch canals, a Victorian pleasure garden, and a sensory garden designed for visitors with autism or dementia. The on-site tea-room serves light refreshments, and the Time Travel Trails app adds augmented-reality stories about the Massereene family.
Heritage Walks
For a deeper dive into local history, join a Blue Badge guided heritage tour. The 90-minute walk covers the town’s medieval origins, the turbine memorial, the Tudor-style gateway to Shane’s Castle, and the repurposed viaduct, with anecdotes about notable residents like author Laurence McKeown and architect Alan Jones. Bookings can be made directly with local guide Shirley Gray.
Conservation and Wildlife
The forest reserve is a haven for native wildlife. Red squirrels are regularly spotted along the trails, while seasonal waterfowl migrations bring swans, geese, and ducks to the lakes. The World of Owls team runs seasonal wildlife walks focusing on bird migration and woodland flora. All forest paths are dog-friendly (on a leash) and largely level, though occasional timber board diversions occur during forestry work.
Practical Information
Access – By road via the M22 (junctions at both the eastern and western ends) and the A6. The nearest train station is Antrim. Ulsterbus routes 110 and 122 connect Randalstown to Cookstown, Antrim, and Ballymena.
Parking – Street parking in the town centre is free. The Randalstown Forest car park (off the Randalstown-Toome Road) provides free on-site parking for visitors to the forest and World of Owls centre.
Opening Hours (Antrim Castle Gardens)
- Monday – Friday: 09:30 – 17:00
- Saturday – Sunday: 10:00 – 17:00
World of Owls opening hours vary seasonally; check their website before visiting.
Accessibility – Both the forest pathways and the viaduct walk are level and suitable for wheelchair users, although occasional timber board diversions may occur during forestry work. Antrim Castle Gardens provides fully accessible toilets, disabled parking bays, and an EV-charging point.
Flood risk – The town is classified as medium flood risk according to national hazard data; visitors should be aware of occasional high-water warnings on the River Main.