the Netherlands. Cape Horn Sailing ships, such as the windjammers in the heyday of the Great Grain Race between Australia and Europe during the 1930s, often preferred the Cape Horn route when going to Europe, due to prevalent wind directions, even though it is slightly longer from Sydney to Europe this way than past Cape Agulhas. Negev desert railway In February 2012, Israel announced its intention to construct a railway between the Mediterranean and Eilat through the Negev desert to compete with the canal. By 2019, the project had been indefinitely frozen. Environmental impact The opening of the canal created the first salt-water passage between the Mediterranean Sea and the Red Sea. Although the Red Sea is about higher than the eastern Mediterranean, the current between the Mediterranean and the middle of the canal at the Bitter Lakes flows north in winter and south in summer. The current south of the Bitter Lakes is tidal, varying with the tide at Suez. The Bitter Lakes, which were hypersaline natural lakes, blocked the migration of Red Sea species into the Mediterranean for many decades, but as the salinity of the lakes gradually equalised with that of the Red Sea the barrier to migration was removed, and plants and animals from the Red Sea have begun to colonise the eastern Mediterranean. The Red Sea is generally saltier and less nutrient-rich than the Mediterranean, so that Erythrean species will often do well in the 'milder' eastern Mediterranean environment. To the contrary very few Mediterranean species have been able to settle in the 'harsher' conditions of the Red Sea. The dominant, south to north, migratory passage across the canal is often called Lessepsian migration (after Ferdinand de Lesseps) or "Erythrean invasion". The recent construction by the Egyptian government of a major canal extension - allowing for two-way traffic in the central section of the canal and finally implemented in 2015 - raised concerns from marine biologists, who fear that it will enhance the arrival of Red Sea species in the Mediterranean. Exotic species from the Indo-Pacific Ocean and introduced into the Mediterranean via the canal since the 1880s have become a significant component of the Mediterranean ecosystem. They already impact its ecology, endangering some local and endemic species. Since the piercing of the canal, over a thousand species from the Red Sea - plankton, seaweeds, invertebrates, fishes - have been recorded in the Mediterranean, and