The Manx Bat Group will lead an evening bat spotting walk from Marown School.
The walk along the old railway line in Glen Vine takes place from 9.30pm on Saturday, June 27.
There will be an introductory talk and bat detectors will be available to borrow.
Participants should wear sturdy shoes and warm clothes, and bring a torch.
Bat spotting walks are taking place during the summer months.
Other locations include Ballasalla village and river on July 25 from 9.10pm and Andreas village on August 29.
For any last minute changes see the Manx Bat Group website or Facebook page.