Treshnish Isles

What to expect when you arrive

This short film by Trust Ambassador Cal Major gives a superb introduction to the Treshnish Isles.

The weather and sea conditions can change very quickly, and sometimes plans have to change. It is always advisable to be prepared for almost any weather for the boat trip out and once you arrive on the island.

Most boats landing on Lunga arrive at the boulder bay called Corran Lunga at the north-east end of the island. From there, you can explore the island at your leisure. Most visitors head straight for the wonderful seabird colonies. The birds can appear to be remarkably tame but please remember this is their home and they need a little space.

There are no visitor facilities, toilets or formal footpaths on Lunga.

The ground conditions are uneven with steep drops in places. Please take care.

We aim to have a ranger present on the island as much as possible, to help you make the most of your visit and to look after the precious wildlife. Please take note of advice given by our rangers. 

Dogs

Please do not bring your dog to the Treshnish Isles.

Lunga and the Treshnish Isles are a haven for ground-nesting birds such as puffins and storm petrels. In line with other important seabird islands, and in order to conserve the delicate ecosystems, seabirds and wildlife on the islands, we do not permit dogs to land even if they are on a lead or under close control, with the exception of guide or assistance dogs.

Dog-sitting services are available on Mull and the mainland.

Many seabird populations are currently under increased pressure from avian flu and changes to the prey they depend on. Keeping dogs away from their breeding sites is one way to help relieve any additional stress on these populations. We are grateful for your support.

Drones

Lunga and the Treshnish Isles are a ‘no-drone zone’ between 1 April and 31 July, to prevent disturbance to breeding seabirds. Outwith this time, amateur unmanned aerial vehicle (drone) operators should seek permission from the property before flying. Commercial operators should contact the Trust’s Filming Manager at filming@nts.org.uk

Landing charges are applicable for commercial operators. Please contact traveltrade@nts.org.uk for more information.

Avian flu

Avian flu (H5N1) is still potentially affecting seabirds. The risk to human health is very low but you may see dead birds on your visit, so please follow these simple rules to keep yourself safe:

• Do not touch any dead or dying bird
• Wash your hands before eating, drinking or smoking
• Report any dead birds to Trust staff, either in person, or using the contact details above. If dead birds are marked with paint, then they have already been counted so there is no need to report them.

H5N1 is a highly infectious disease in birds and can be spread through their faeces. You can help limit the spread to other places and species by keeping your distance from the birds and by checking for notices on the island about areas to avoid.

If you have been to, or are going to, another seabird colony or have birds at home, please:

• Thoroughly clean your boots, especially the soles
• Wash your outer clothing

Thank you for your support.

Read more: The impact of avian flu at our places

25 July 2025

We are sorry to confirm that a kittiwake from Lunga in the Treshnish Isles has tested positive for avian flu H5N1. It has been a small, contained outbreak and doesn’t appear to have spread to other species of seabird. Our ranger team are continuing to monitor closely in Lunga, and at our other seabird colonies, keeping records and reporting any infected birds, and working closely with other organisations such as NatureScot.

The risk to human health from H5N1 is very low, but it is important not to touch any bird, whether dead, alive or one that is behaving strangely. It is also important not to pick up feathers or eggshells. 

Visitors can continue to land on Lunga, but we ask you to please check this webpage before travelling for the latest information.

We also ask visitors to our properties not to disturb or stress birds and other wildlife. This includes not approaching birds and nests closely. Please be respectful of the rope boundaries on Lunga and Staffa, and make use of the boot washes, biosecurity mats and sprays provided. 

For more information about planning your visit, please see our frequently asked questions.