how can one get to this park in terms of travelling?
By road like the Park lane or by the London Underground rail.
Hyde Park, London
here are five London Underground stations located on or near the edges of Hyde Park and Kensington Gardens (which is contiguous with Hyde Park). In clockwise order starting from the south-east, they are:

Bayswater tube station, on the Circle and District lines, is also close to Queensway station and the north-west corner of the park. High Street Kensington tube station, on the Circle and District is very close to Kensington Palace located on the Southwest corner of Kensington Gardens. Paddington station, served by Bakerloo, Circle and District, and Hammersmith & City lines, is close to Lancaster Gate station and a short walk away from Hyde Park.

Several main roads run around the perimeter of Hyde Park. Park Lane is part of the London Inner Ring Road and the London Congestion Charge zone boundary. The A4, a major road through West London, runs along the southeastern edge of the park, while the A5, a major road to Milton Keynes and the Midlands runs northwest from Marble Arch.
when did hyde park open to the public In 1637. who designed this park? The first coherent landscaping was done by Charles Bridgeman. what's the area of this park? 142 hectares. what are some of its features? Popular areas within it include Speakers' Corner, and Rotten Row. what plants will you find there? The weeping beech , roses and others. what are the memorials erected in that place? The Cavalry Memorial,  the Diana, Princess of Wales memorial ,Holocaust Memorial , the 7 July Memorial and others. that last memorial was built in memory of whom? To commemorate the victims of 7 July 2005 London bombings. how many people died in the above tragic event? Apart from the bombers, 52 people died. who were the culprits? Three of them were British-born sons of Pakistani immigrants and the fourth was a convert born in Jamaica. were there any political rallies or political discussions taken place in that park? Yes, protests have been held by  the Chartists, the Reform League, the suffragettes, and the Stop the War Coalition. can you introduce what is the above league all about? It was established to press for manhood suffrage and the ballot in Great Britain. you had mentioned a coalition, for which war did they want to put to an end? The wars that are part of the "War on Terror" of the United States and its allies.
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Hyde Park, London [SEP] Transport
There are five London Underground stations located on or near the edges of Hyde Park and Kensington Gardens (which is contiguous with Hyde Park). In clockwise order starting from the south-east, they are: Bayswater tube station, on the Circle and District lines, is also close to Queensway station and the north-west corner of the park. High Street Kensington tube station, on the Circle and District is very close to Kensington Palace located on the Southwest corner of Kensington Gardens. Paddington station, served by Bakerloo, Circle and District, and Hammersmith & City lines, is close to Lancaster Gate station and a short walk away from Hyde Park.