Through the 1990s, substantial investment was made in the remaining camps as operators attempted to concentrate their resources. They also attempted to concentrate on specific market sectors. Butlins substantially rebuilt two of its main camps with a focus on caravan accommodation and branded them under sister company Haven – Pwllheli becoming Hafan y Mor and Ayr becoming Craig Tara. The number of Pontins camps was reduced to 8 with several sold off or redeveloped for housing estates. Meanwhile, Warner's had experimented with "Adult Only" camps in the 1980s and gone on to develop hotels (usually in historic buildings) providing hotel-type comfort mixed with holiday-camp-style entertainment. In recent years, camps have attempted to improve their status by changing away from the holiday camp identity and identifying themselves as holiday centres, resorts, holiday villages, coastal villages, or holiday parks.