Traeth Porthor, also known as 'Whistling Sands', is a picturesque beach on the Llyn Peninsula in North Wales. Visitors love its crystal-clear waters and unique squeaky sand that adds a fun touch to the experience. While the steep path down from the National Trust car park may be a bit challenging, the family-friendly beach offers a safe environment for kids to play in the shallow waters. Just keep in mind that dogs are restricted during the summer months, parking costs £5 per day (free for National Trust members), and the toilets are located at the car park. Despite these minor inconveniences, Traeth Porthor is highly recommended for a relaxing day by the sea.