Árpád Bridge to the north, and Margaret Bridge to the south connect Margaret Island with the city. The island is 2.5 km (1.4 m.) long, 500 m (550 yds.) wide, and it covers 225 acres (see map 4/b). In contrast to similar islands in other great cities, this one has not been built over, but has remained a huge park in the heart of the city. In the Middle Ages cloisters were built on the "Rabbits' Island", as it was then called at the beginning of the nineteenth century members of the royal family living in Buda transformed it into a landscape garden. By the turn of the century it had become a health resort owing to its therapeutic springs.