At Dome B&B, there are three types of rooms available. The Deluxe Double Room has 172 sqft of space and can accommodate up to 2 adults. Smoking is not allowed in this room, which features a Queen size bed. The Deluxe Double Room with Castle View offers slightly more space with 194 sqft and can accommodate 3 adults. It also does not allow smoking and has a Twin bed and a Queen size bed. The Deluxe Double Room with Shower is the largest, providing 205 sqft of space and accommodating 3 adults. Like the other rooms, smoking is not allowed and it offers a Twin bed and a King size bed.

From the provided data, it is not clear what specific leisure amenities are available at the Dome B&B. However, we can assume that guests can spend their time at the hotel by taking advantage of the featured amenities mentioned. These featured amenities, which are not specified, could include things like a swimming pool, fitness center, spa, or on-site restaurant.

Additionally, there may be other amenities available at the Dome B&B that are not listed in the data. These amenities could include services such as a 24-hour front desk, concierge service, or room service. These services could enhance a guest's stay by providing convenience and assistance.

Overall, guests at the Dome B&B can spend their time at the hotel by enjoying the featured amenities and taking advantage of any additional amenities or services that are available to them.