The Prince of Wales and Prince George, who are on a visit to the Mediterranean Fleet, landed last evening at Corfu to visit the Achilleion summer palace, which was built by the Empress Elizabeth of Austria and later purchased by the Kaiser. The visit was kept private, and the Princes were met by the Minister of Marine, M. Nomarch, and a few officials only. The Princes spent an hour examining the Achilleion with obvious interest, and enjoyed a swim from a near-by cove before returning to the flagship, the Queen Elizabeth. Before dinner the Prince of Wales borrowed a speedboat from the officers of the Queen Elizabeth and made a tour round all the ships of the fleet at a speed of twenty knots. They gave an official dinner to the Greek Minister of Marine and Greek officials in the Queen Elizabeth. This morning the Princes continued the programme of inspection of the ships. A royal guard paraded in the flagship and the shipÕs band played ÒMen of Harlech.Ó The Princes were piped over the side into the royal barge, and, accompanied by a royal escort, they went aboard the ships Revenge, Coventry, London, and Cyclops, and the destroyers Douglas, Codrington, and Keith, afterwards returning to the flagship. The commanding officers and officers were presented to the Princes and the shipsÕ companies were inspected. From the Cyclops, which is the mother-ship of the first submarine flotilla, the Prince of Wales went by plankways aboard H.M.S. Oberon and descended through the main hatchway. He spent half an hour in immense heat examining the mechanism with interest, and then ascended through the after hatchway, which necessitated a long and hazardous climb around the ship's conning-tower and superstructure. Mainbrace Spliced Prince George inspected the Perthshire, the hospital ship Maine, the Bryony, and the first destroyer flotilla. In the Maine he visited the sick bays and conversed with the inmates. The programme of inspection will be continued to-morrow. The fleet weighs anchor and starts for Malta at 11.30 G.M.T., carrying out exercises en route. At the request of the Prince of Wales the Commander-in-Chief this afternoon signalled all the ships to make and mend clothes, which is the naval expression for a half-holiday. Further, following the recent example of the King at Weymouth, the Prince of Wales ordered the mainbrace to be spliced this evening Ñ that is, an extra tot of rum issued. This is the first time this order has been given to the Mediterranean Fleet since the Armistice.