Two things anchor a visit to Portumna: a Jacobean castle that stood as a roofless ruin for nearly a century and a half, and a forest park on the shore of Lough Derg where white-tailed sea eagles nest. The town sits on the Galway bank where the River Shannon opens into the lake, with Tipperary across the water. Its Irish name, Port Omna, means ‘the landing place of the oak’ – a nod to the timber that once moved through here by water. Around 1,690 people live here.
Portumna Castle and gardens
Portumna Castle is a semi-fortified Jacobean house, built before 1618 by Richard Burke, 4th Earl of Clanricarde, and the de Burgo family’s seat for more than two hundred years. A fire in 1826 gutted it, and it stood a roofless shell until the state took it on and began restoration in the 1960s – work that still isn’t finished. That shapes what you’ll actually see: only the ground floor is open, as a small exhibition on the de Burgo line and the region’s history. Come for the outline of the building and the gardens, not a furnished house tour.
The gardens are the reason to linger. Geometric formal beds lie to the north, alongside a 17th-century walled kitchen garden and a willow maze whose central path is lined with espalier fruit trees underplanted with lavender. There’s a café, a playground and picnic areas in the grounds, and the car park at the gate is free.
Opening hours
| Season | Dates | Daily opening | Last admission |
|---|---|---|---|
| Main season | 5 Mar – 21 Oct | 10:00 – 18:00 | 17:15 |
| Late season | 22 Oct – 12 Nov | 10:00 – 17:00 | 16:15 |
Ticket prices
| Category | Price |
|---|---|
| Adult | €5.00 |
| Group / Senior | €4.00 |
| Child / Student | €3.00 |
| Family (2 adults + 2 children) | €13.00 |
The ground floor and grounds are partly wheelchair-accessible, with an accessible toilet on site; some rooms stay closed for preservation.
Portumna Forest Park
The forest park runs from the edge of town down to Lough Derg. Coillte, which owns and manages it, puts it at around 450 hectares; some tourism listings say closer to 600. Either way there’s plenty of it: four waymarked loops from 1 km to 10 km, two beginner-friendly mountain-bike trails and three orienteering courses, plus a fully accessible boardwalk down towards the lake. Fallow deer, red squirrels and pine martens live in the woods, and white-tailed sea eagles – reintroduced to the Shannon region – nest nearby. If you’ve only an hour, walk the short accessible boardwalk loop; with longer, take one of the lakeshore trails.
The Shannon and the swing bridge
Portumna’s swing bridge was the largest of its kind in Europe when it opened in 1911, replacing a run of ferries; it still pivots open for boats, and its central span was renewed in 2008. Two harbours – Connacht Harbour and the ‘New’ Harbour near Castle Avenue – put you straight onto the Shannon navigation. Anglers work the ‘lower town’ and ‘upper ESB’ stretches for pike, perch, bream and roach, and local operators hire out boats. The bridge opens on a set schedule – six times a day from April to October, three times a day in winter – so check the times if you want to watch the span swing.
More to do
- Hymany Way – a 90 km waymarked trail starting in Portumna and forming part of the Beara-Breifne Way, following the Shannon valley; graded for beginners.
- Portumna Golf Club – an 18-hole parkland course (par 72) on the edge of the forest park.
- Portumna Forest Marathon – held each June, with full, half, 50 km and 100 km ultra distances through woodland and along the river.
- Festivals – the Great Outdoors Festival (late June) and the Shorelines Arts Festival (late September), four days of music, theatre and visual art in the town centre.
Heritage around the town
- Irish Workhouse Centre – in the restored 1842 workhouse, open 9.30am–5pm, April to October. It’s the only centre in Ireland telling the story of the workhouse system, and the guided tour covers the daily reality of the Famine years.
- Portumna Priory – a ruined medieval Dominican friary near the castle, free to walk around.
- Portumna Water Crane – a rare 1850 cast-iron crane on the quay, left from the town’s river-trade days.
- Miller Mausoleum – a small Gothic-Revival tomb with distinctive vermiculated stonework.
Getting there
- By road – from Dublin, take the M6 to Ballinasloe then the R355 south; from the M7, exit at Moneygall for the R490 and N65 to the R352.
- By bus – Local Link 547 runs Ballinasloe–Portumna five times Monday to Saturday and three times on Sundays; the Kearns 845 runs once a day to Dublin (back at 6pm); Bus 844 links Birr, Portumna and Galway twice daily.
- By air – Shannon Airport is about 40 miles away, Dublin about 83.
Parking at both the castle and the forest-park gates is free, and there are toilets, a café, a playground and Wi-Fi in the castle grounds. Most attractions run from March or April to October or mid-November, so check dates before a shoulder-season trip.
If you want the castle, the gardens and a forest walk in one visit, give it the best part of a day – and time your arrival at the harbour for one of the swing bridge’s opening slots, which is the one bit of Portumna that still does what it was built to do.