The Cartref Guest House offers a variety of rooms including Triple Rooms with showers, Deluxe King Rooms, Single Rooms with showers, and Budget Single Rooms. Smoking is not allowed in any of the rooms. The Triple Rooms can accommodate either 3 adults with 1 twin bed and 1 double bed or 3 adults with 3 twin beds. The Deluxe King Room is suitable for 2 adults with 1 king size bed, while the Single Rooms and Budget Single Rooms can accommodate 1 adult with 1 twin bed. The room sizes range from 86 sqft for the Budget Single Room to 226 sqft for the Triple Room.

While the given data does not provide specific information about the featured or other amenities at the Cartref Guest House, it is common for hotels to offer various leisure amenities to enhance their guests' stay. These amenities may include a swimming pool, fitness center, spa services, and recreational activities such as tennis or golf. Additionally, the hotel may have a lounge or bar area where guests can relax and socialize. Some hotels also offer entertainment options like live music or game rooms.

Guests can spend their time at the hotel enjoying these leisure amenities and participating in any activities offered. They can take a refreshing dip in the swimming pool, work out at the fitness center, or indulge in spa treatments for relaxation. If available, they can engage in recreational activities like tennis or golf for some outdoor fun. In the evening, they can unwind at the lounge or bar, and perhaps enjoy some live entertainment or play games at the game room.