At Cowes Regatta, Duke of Edinburgh enters with his racing dinghy Coweslip. Cowes, Isle of Wight. GV. Royal yacht Britannia in Cowes harbour. SCV. Alongside Britannia, the Duke of Edinburgh is coming down gangway to board his racing yacht Coweslip. CU. Girl on shore looking through telescope. SV. Prince Philip sailing the Cowslip. GV. Over people on shore to Royal yacht squadron in Solent ready for start. SCU. Starting cannon - it fires. GV. Yachts racing. CU. People on racing yacht. SCU. Duke racing Cowslip.