YMCA Lincolnshire - serving the local community... YMCA Lincolnshire operates a number of facilities and services across the county, all providing enrichment and support to the local community. Our St. Rumbold Street Accommodation and Fitness/Training Centre provide housing services, a gym with regular fitness classes, also offering workplace & CPD training. The Showroom Conference Centre provides events ranging from corporate seminars and conferences to birthday parties & weddings. The Showroom Activity Centre delivers pioneering youth engagement, evening youth clubs, sports & activities, and alternative curriculum provision, as well as housing Lincolnshire’s largest indoor Climbing Centre, The Showroom Climbing Centre.