Festival lovers prepare, as 2011 is to see an explosion of free events and festivals hit the capital.

Here are two of the most exclusive, momentous and popular free festivals that will enhance London’s cultural scene this summer.

The Mayor’sThames Festival 2011 - September 10 – September 11 2011

Held at different locations on the River Thames and various public spaces between Westminster Bridge and Tower Bridge, the annual Mayor’s Thames Festival provides an abundance of exhilarating activities to capture the imagination of all the family.

Each year thousands of spectators from across the globe attend the festival, which provides a spectacular celebration of London’s unique heritage and culture.

Children are at the heart of this highly enlightening free event, being mesmerized and astonished at the plethora of street art, circuses, carnivals, illuminations river events and massed choirs.

One particular popular activity is the race on the Thames, which sees more than 300 boats, including Viking Dragon boats, battling across the waters to be crowned champions.

Another highlight of the of this extravagant festival is a multi-coloured night procession, which consists of hundreds of flamboyant performers lining the river’s banks whetting onlooker’s appetites before a magnificent firework display fills the London night sky.

iTunes Festival - London Roadhouse, July 1 – July 31 2011

More than 60 artists, will gather at the Roadhouse for a month-long music bonanza. Amongst the acts at one of London’s most exclusive free festivals are legendary 80s pop group Duran Duran, the sensational Adele, the brilliant Beady Eye, Rumer and Lincoln Park. Although to keep iTune festival revellers firmly on their toes, the festival is adding new artists to the line-up regularly until July.

To check out the constantly evolving line-up and to obtain tickets for this exclusive 31 nights of musical genius, you must register your details at the iTunes festival website.

If you need five star hotel accommodation during these events, book through Wyndham Grand Chelsea Harbour or phone 020 7823 3000.