On June 20, 1923, Captain O'Brien sailed from Dublin in the ketch Saoirse, 37 1/2 feet in length, with no auxiliary motor and a crew of two. Exactly two years later he made Dublin again after a voyage of 31,000 miles, via Pernambuco, Cape Town, Durban, Melbourne, New Zealand and the Horn - which the Saoirse is one of the smallest boats ever to round. Needless to say, such a voyage provided him with abundance of strange experiences, some of which London listeners will hear tonight.