It's really not that difficult, although it can be at bit daunting at first. Try following these easy steps. All alternative experiences, recommendations and contributions will be welcomed and incorporated.

• Identify a pool/ground/site in which to host the club
• check available times with local authority/ owner
• Devise poster to attract players - simple & eyecatching, with colour if possible.
• Gauge demand
• put posters in local shops, leisure centres, sports clubs, libraries, schools/colleges/universities
• contact personnel departments & sports clubs of large local companies
• Obtain presentation media - videos, demo equipment etc.
• Hire a small hall - hold presentation
• get existing male, female, youth & junior players from nearby clubs to attend and speak
• sell the idea
• Arrange hire of pool/ ground/ site for one-off trial session - convenient day of week at convenient time
• Write to local newspapers - supply poster, description of sport, date of trial session
• Hire/borrow equipment -
• Trial session
• get existing male, female, youth & junior players from nearby clubs to help
• remind local newspapers: make sure they cover the event
• Gauge resulting demand - get commitment of membership from attendees
• Form the club
• appoint Chairman, Manager & Treasurer. Team Captain to follow
• Identify club membership fees from costs
• Collect membership fees from new members
• Commit to hall/ground/site hire
• Organise courses, training etc.
• Contact other clubs to play matches
• Devise club "identity"
• Decide on club colours
• Design club logo - simple, eyecatching, visible at a distance
• Approach swimwear/kit manufacturers for details of designs
• Approach
• Approach clothing manufacturers for details of custom T-shirts, polo shirts, caps etc.
• Take kit & clothing orders from players
• Place orders with manufacturers
• Register club with relevent Association / national governing body
• Join local league
• Hold own tournament
• Buy trophy / medals / prizes
• Arrange site hire - Saturday or Sunday mid-afternoon to mid-evening
• Identify entry cost per player or club, including food after the tournament/ game
• Invite other clubs
• Arrange playing schedule, including contingency in the case of late-running
• Arrange buffet
• Ensure sufficient number of red referees caps, whistles, "stoppers" etc.

 

This list was inspired by the methods that Clare Ash used to set up Farnham & Guildford, a highly successful UK club with thriving mixed, ladies, youth and junior sections. All additions welcome.