The waterfall is formed by the River Llugwy, which originates from the Llyn Llugwy lake near the slopes of Carnedd Llywelyn.
The name Rhaeadr Ewynnol translates literally from Welsh to 'foaming waterfall'.
The site features a series of iron-railed viewing platforms constructed to allow safe observation of the fast-flowing water.
The landscape surrounding the falls is part of an ancient woodland area known for high humidity and diverse moss growth.
The narrow gorge at Swallow Falls is characterized by high-velocity water movement, which prevents traditional river sediment deposition.
The area is a recognized habitat for various ferns and liverworts that thrive in the continuous spray from the falls.
Swallow Falls, known in Welsh as Rhaeadr Ewynnol, is a multi-stage waterfall situated on the River Llugwy within Snowdonia National Park. The waterfall features a series of cascades that drop over jagged rocks amidst deep, wooded gorges. It is widely regarded as one of the most popular natural attractions in North Wales due to its accessibility. The river narrows significantly at this point, forcing water through a complex series of rock formations. The site is managed via a series of viewing platforms and staircases that provide safe vantage points. Historical accounts indicate the site has been a destination for visitors since the Victorian era. The water volume fluctuates significantly based on recent rainfall levels in the surrounding mountains.
The highest viewing platform offers a clear, unobstructed angle looking down the main drop of the falls.
Wear sturdy footwear with good grip, as the wooden steps and surrounding terrain can become slippery when wet.
Visit immediately after a period of heavy rainfall to see the waterfall at its most powerful and voluminous state.
Use the automated turnstile access point, which requires small change for entry.
Do not attempt to access the riverbanks or swim in the pools, as the current is extremely powerful and contains hidden underwater hazards.
Keep strictly to the designated viewing platforms and do not attempt to climb the gorge walls, as the rocks are unstable and dangerously slippery.
