Providing on-line non-downloadable software for managing recreational classes and recreational activities, namely, class and activity registration, credit card transaction processing, and mass notification of subscribing clients using voice or text messaging; Providing online non-downloadable computer software platforms for the administration of recreational classes and facilities; Providing on-line non-downloadable software for online registration, making payments to, and business management of recreational classes and activities; Providing on-line non-downloadable software for facilitating administration, management, and participation at recreational classes and activities, namely, managing staff, registering participants, managing facilities, managing customer accounts, facilitating mass communication among staff and participants, facilitating completion and filing of forms and consents, managing online retail commerce, and managing healthcare of participants