No, you cannot walk to Roosevelt Island from the nearest point on the mainland.
Roanoke Island is located off the coast of North Carolina and is separated from the mainland by the Albemarle Sound to the north and the Roanoke Sound to the south. The distance between Roanoke Island and the mainland varies, but it is generally around 1 to 4 miles, depending on the specific location on the island and the nearest mainland point. The island is accessible by bridge from the mainland, making it easy to visit.
Nantucket is approximately 30 miles (48 kilometers) south of Cape Cod, Massachusetts, which is the nearest point on the mainland. The distance can vary slightly depending on the specific departure point on the mainland. The island is accessible by ferry or small aircraft, making it a popular destination for visitors.
Point Pelee in Ontario is the southernmost point of mainland Canada, while Pelee Island, also in Ontario, is the southernmost inhabited point in Canada.
England occupies the southern half of the island of Britain which lies off the west coast of the European mainland. Its nearest neighbour is France which is only 22 miles away at its closest point.
The distance from Australia's island state of Tasmania to the closest point on the mainland is around 240 km.
It is an island that is the southernmost point in the united states, located southwest of mainland Florida. It is also connected by bridges ROM mainland Florida.
Point Pelee is not an island; it is part of the mainland. You were probably thinking of Pelee Island, which is in western Lake Erie, almost 20 miles south of Point Pelee. Pelee Island is Canada's southernmost community, with about 300 permanent residents. The southernmost place in Canada is the uninhabited Middle Island, a few miles further south. If you Google "Pelee Island" you will find several useful websites.
The southernmost point on mainland Australia is South Point, on Wilson's Promontory, in Victoria (39°08' S). Of all the states, Tasmania, being the island state of Australia, has Australia's southernmost point, which is South East Cape. However, Bishop and Clerk Islets, south of Macquarie Island (considered part of Tasmania), actually mark the southernmost point of Australia, not counting the Australian Antarctic Territory.
That geographic point is located in the Van Diemen Gulf, Northwest Territories, Australia. The nearest island to that point appears to be Gardangarl Island.
Hatteras Island is part of the Outer Banks of North Carolina and is approximately 70 miles long. Its distance from mainland North Carolina varies depending on the starting point, but it is generally around 30 miles from the nearest towns, such as Nags Head or Manteo. Access to the island is primarily via the Bonner Bridge or ferry services.
Cumberland Island is approximately 30 miles south of Savannah, Georgia. The island is accessible primarily by ferry, which takes about 45 minutes to reach from St. Marys, Georgia, the nearest mainland point. While it's relatively close in distance, the journey involves navigating waterways rather than a direct route.
Surville cliffs on Northwest cape on the mainland. The most northerly point that belongs to New Zealand is Raoul island 1100 km NNE from the North Island.