The Korission lake nature reserve also provides a stopover for European birds migrating south. Up until the early 20th century, it was mainly visited by the European royals and elites, including Emperor Wilhelm II of Germany and Empress Elisabeth of Austria; today it is also widely visited by middle class families (primarily from the UK, Scandinavia and Germany). With the advent of the jet airliner bringing these groups relatively affordable 'package holidays', Corfu was one of the primary destinations for this new form of mass tourism  It is still popular with the ultra-wealthy however, and in the island's northeast the homeowners include members of the Rothschild family and Russian oligarchs. The island is linked by two motorways, GR-24 in the northwest and GR-25 in the south. Corfu has ferry services both by traditional ferries to Gaios in the island of Paxoi and as far as Patras and both traditional ferries and advanced retractable airfoil, hydrodynamic-flow, high-speed ferries called "Flying Dolphins" to Igoumenitsa and Sarandë in neighbouring Albania. The small port of Lefkimmi is also to be found at the southernmost tip of the island on Cape Kavos, offering a ferry service to the mainland. The Ioannis Kapodistrias International Airport, named after Ioannis Kapodistrias, a distinguished Corfiot and European diplomat, and the first governor of the independent Greek state, is located around three kilometres south of Kerkyra, just half a kilometre north of Pontikonisi. The approach and landing, in a northeasterly direction, afford passengers spectacular aerial views of "Pontikonisi" and Vlaheraina Monastery, also taking in the hills of "Kanoni", as the runway employed for landing lies a few hundred metres from these spectacular local landmarks. The airport offers domestic flights from Olympic Airlines (OA 600, 602 and 606), and Aegean Airlines (A3 402, 404 and 406). Seaplanes, Air Sea Lines, a Greek seaplane operator, offers scheduled flights from Corfu to Paxoi, Lefkada, Ithaki, Kefalonia, Ioannina, Patras and Brindisi in Italy. The buses to the main places on the island run about six times a day between the city and Glyfada, Sidari, Paleokastritsa, Roda and Acharavi, Lefkimmi, Lefkimmi and Piri.