Drone Flying Rules in Snowdonia (Eryri) — National Park Restrictions & Mountain Safety (2026)

Eryri National Park Authority (ENPA) Land

The Eryri National Park Authority (formerly Snowdonia National Park Authority) owns less than 1% of the total land within the national park designation. However, that 1% includes some of the most popular drone filming locations, most notably the summit of Yr Wyddfa (Snowdon) and several car parks used as trailheads.

To fly a drone on ENPA-owned land, you must:

• Obtain permission: Contact ENPA’s Property Department at the National Park Office in Penrhyndeudraeth before your visit. Permission and licensing are required for both recreational and commercial drone use on ENPA property.
• Provide insurance: You must hold both Public Liability Insurance and Aviation Liability Insurance. Evidence of these documents should be presented when requested.
• Follow conditions: Any permission granted may include conditions on flight times, altitudes, and areas where you may operate.

The Summit of Yr Wyddfa

The summit of Yr Wyddfa (1,085 metres) is ENPA-owned land and attracts hundreds of thousands of visitors annually. During peak periods, the summit area regularly qualifies as a congested area under CAA rules, requiring 150 metres horizontal distance from people under Open Category A3. Combined with the ENPA permission requirement, flying at the summit without prior authorisation is not permitted.

Even with permission, the summit presents serious practical challenges: extreme wind, rapid weather changes, low cloud, and large numbers of hikers make safe drone operation extremely difficult.

Private Landowners Within the Park

Since ENPA owns less than 1% of the park, the vast majority of Snowdonia’s land is privately owned by farmers, estates, the National Trust, Natural Resources Wales, and other bodies. On this private land, ENPA has no authority to grant or refuse drone permission — you must seek consent directly from the relevant landowner.

The National Trust, which manages several properties in Snowdonia, has its own drone policy. Contact the local National Trust office before flying on their land. Similarly, Cadw (the Welsh Government’s historic environment service) has a drone policy for sites it manages, such as castles and historic monuments within the park.

The Mach Loop — Military Low-Flying Area

The Mach Loop is a series of valleys between Dolgellau in the north and Machynlleth in the south, used regularly by the Royal Air Force and United States Air Force for low-altitude training flights. Military aircraft — including Typhoons, Hawks, and F-15E Strike Eagles — fly through these valleys at heights as low as 250 feet (approximately 76 metres) from the nearest terrain.

This is a critical safety issue for drone pilots. At 250 feet, military aircraft are operating well below the maximum drone altitude of 120 metres (400 feet). A collision between a drone and a fast jet could be catastrophic. If you are flying a drone anywhere in southern Snowdonia:

• Check for military activity: Low-flying activity is most common on weekdays but can occur at any time. There is no current requirement to issue NOTAMs for civilian drone activity below 400 feet, creating a potential conflict.
• Stay alert: Fast jets can appear with almost no warning in the valleys. Maintain constant visual and auditory awareness.
• Fly low: If operating near the Mach Loop area, consider flying well below 50 metres to reduce the risk of encountering low-flying military aircraft.
• Avoid the valleys: The specific valleys used for the Mach Loop (between Dolgellau and Machynlleth) should be treated as extremely high-risk zones for drone operations.

RAF Valley and RAF Mona FRZs

RAF Valley and RAF Mona, located on Anglesey to the north-west of Snowdonia, are protected military aerodromes with permanent Flight Restriction Zones. These FRZs are active 24 hours a day, 7 days a week, and restrictions apply to all drones regardless of weight or purpose.

While these FRZs are centred on Anglesey rather than within the national park itself, military training flights from RAF Valley frequently transit across northern Snowdonia. Be aware that military aircraft from these bases may appear at low altitude anywhere in the region.

To request permission to operate within the RAF Valley or RAF Mona FRZ, applications must be submitted in writing with no less than 7 days’ notice.

CAA Open Category Rules (2026)

All standard CAA rules apply within Snowdonia:

• Registration: Drones 250g or more require both an Operator ID and Flyer ID. Drones 100g–249g require a Flyer ID only.
• Maximum altitude: 120 metres (400 feet) above the closest point of the Earth’s surface. In mountainous terrain, this is measured from the ground directly below your drone, not from your take-off point.
• Visual line of sight: Maintain VLOS at all times. Mountain terrain and weather can reduce visibility rapidly.
• Distance from people: 50 metres from uninvolved persons, 150 metres from congested areas (A3 subcategory). Popular trails and summits often meet the congested area threshold.

Mountain Weather and Safety

Snowdonia’s mountain weather is notoriously unpredictable and presents serious risks for drone operations:

• Wind: Exposed ridges and summits experience wind speeds far exceeding the capabilities of most consumer drones. Wind can be calm in a valley but fierce at altitude.
• Cloud: Low cloud and hill fog can develop rapidly, making VLOS impossible. If cloud descends during your flight, you must land immediately.
• Rain and temperature: Heavy rain can damage drone electronics, and cold temperatures at altitude reduce battery performance significantly.
• Terrain: Rocky, uneven ground makes emergency landings hazardous. Choose your take-off and landing site carefully.

Check the Met Office mountain weather forecast for Snowdonia before every flight. If conditions are marginal, do not fly.

Wildlife and Environmental Protection

Snowdonia supports protected species including peregrine falcons, red kites, and other birds of prey. Disturbing these species or their nesting sites is an offence under the Wildlife and Countryside Act 1981. Avoid flying near cliff faces and crags during the breeding season (March to August), and maintain generous distances from any birds of prey you observe.

Natural Resources Wales manages several nature reserves within the park. Check for any additional drone restrictions in these areas.

Penalties

• Flying without registration: fines up to £1,000.
• Flying in an FRZ without permission: fines up to £2,500.
• Endangering an aircraft: unlimited fines and up to 5 years imprisonment under the ATMUA Act 2021.
• Disturbing protected wildlife: prosecution under the Wildlife and Countryside Act 1981.

Practical Tips for Snowdonia

1. Contact ENPA in advance if you want to fly at the Yr Wyddfa summit or from ENPA car parks — permission is required and may take time to arrange.
2. Avoid the Mach Loop valleys (Dolgellau to Machynlleth) unless you are confident no military activity is scheduled.
3. Fly early in the morning before crowds build up and when wind conditions are typically calmest.
4. Lower-altitude lakes and valleys (such as Llyn Gwynant, Nant Gwynant, or the Ogwen Valley) offer stunning scenery with fewer summit-related complications — but check land ownership.
5. Carry spare batteries — cold mountain temperatures drain batteries faster than at sea level.
6. Always check the Met Office mountain forecast and the NATS Drone Safety Map before heading out.