Celebrating nature: free events in Mayo for Biodiversity Week 2025

A week-long celebration of Ireland's rich natural heritage is set to take place this May as part of Biodiversity Week 2025, with a packed programme of free events across Mayo’s stunning natural landscapes. From dark sky walks to guided hikes and wildlife talks, locals and visitors alike are invited to explore and learn about the biodiversity that surrounds them.

On Saturday, May 17 at 1pm, the Ballycroy Visitor Centre will host an Invasive Species Talk & Walk, focusing on the impact of invasive rhododendron on native landscapes. Attendees will begin with a talk and then take part in a guided nature walk to see the effects of this plant first-hand.

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On Sunday, May 18 from 8:30pm to 10:30pm, head to Newport for Dark Skies, Bats & Biodiversity. The evening begins with an indoor presentation at the Gráinne Uaile on local bat species and biodiversity, followed by a magical walk under the stars. Registration is required and places are limited. For more information, contact: info@darksky.ie or office.mayodarksky@gmail.com.

Wednesday, May 21 from 12pm to 4pm marks Natura 2000 Day with a Mini Bio Blitz at Ballycroy Visitor Centre. Participants can join local guides in spotting and recording pollinators, birds, insects, and plants during this citizen science event.
On Thursday, May 22 from 1pm to 3pm, the Ballycroy Visitor Centre will host Peat Cores & Climate with Dr Lisa Orme from Maynooth University. This talk explores how ancient peat cores provide valuable insight into thousands of years of environmental and climate history.

Celebrate the European Day of Parks on Saturday, May 24 from 12pm to 3pm with a guided walk along the Claggan Mountain Coastal Trail. Attendees will witness the environmental effects of a recent wildfire and learn about its lasting impact on the surrounding ecosystem.

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On Sunday, May 25 at 10am, join a guided hike along the 13km New Leana loop trail starting from Srahrevagh Carpark. Participants will enjoy scenic views while learning about the history of those who once lived in the area. The event is open to those over 16 and requires proper hiking gear, food, and water. Booking is essential as it is limited to 30 people. To reserve a spot, call 098 49888 or email ballycroyvisitorcentre@npws.gov.ie.

Finally, on Friday, May 30 at 8:30 PM, the Corncrake Life team invites you to Áras Inis Gluaire in Belmullet for an evening talk and tour. The event includes a rare opportunity to hear the distinctive call of the elusive corncrake in its natural habitat. Bookings can be made through Ballycroy Visitor Centre at 098 49888.

All events are free of charge and offer a fantastic opportunity to experience the biodiversity and natural beauty of Mayo this May.