Award winning quality RYA training within easy reach of London and the Home Counties. Based by the beautiful River Thames at Marlow, an independent business established in 1991 within Bisham Abbey National Sports Centre specialising in small group Royal Yachting Association training. Practical motor, barge and narrowboat handling courses on our 22 foot Mitchell, 17 metre Dutch barge, 36 foot narrowboat, or Powerboat Level 1 and 2 on our RIBs. Alternatively, our instructors can come to you for own boat tuition at your venue. Inland Waters Helmsman's Course.