Hotel Castelo Branco offers a variety of room types. The Standard Double room accommodates 2 adults and 1 child, with a double bed and twin beds available. The Family room can accommodate 5 adults and 1 child, with 8 twin beds and 1 double bed. The Standard Triple room can accommodate 3 adults and 1 child, with 4 twin beds and 1 double bed. Smoking is not allowed in any of these rooms.

Unfortunately, the data provided does not mention any specific amenities or activities offered by Hotel Castelo Branco. Therefore, it is not possible to provide a detailed answer on how guests can spend their time at the hotel.

However, it is common for hotels to offer a variety of leisure amenities such as swimming pools, fitness centers, spa facilities, and recreational areas. Guests may be able to relax by the pool, work out at the fitness center, indulge in spa treatments, or enjoy outdoor activities in the recreational areas. Additionally, some hotels may have restaurants, bars, or lounges where guests can dine or socialize.

Without specific information about Hotel Castelo Branco's amenities, it is best for potential guests to contact the hotel directly or visit their website to find out more about how they can spend their time during their stay.