The River Thames is by far the largest river of the London area.

London is a port on the Thames, a navigable river. For many centuries London Bridge was the only bridge of the city but in the 18th century more bridges were built.

London is vulnerable to flooding by storm surges, in early 2005 it was suggested that a ten mile long barrier further downstream might be required to deal with the flood risk in the future.

A number of canals or canalised rivers have been constructed in the London area, mostly in the late 18th and early 19th centuries. These were originally for goods traffic, which has largely ceased. Although most of the canals still survive today, they are used primarily for leisure craft.

In the Thames the are many Islands:

Chiswick Eyot

Eel Pie Island

Isle of Dogs

Millwall

Cubitt Town.

 

There are a few notable hills in London, but none of them more than a few hundred feet high, and they have not impeded the development of the city in all directions anyway  most of central London is almost flat.

London  boasts one of the planet's greatest concentrations of cultural attractions. From royal palaces to the people's parliament, from Roman ruins to castles and cathedrals.

Buckingham Palace was built in 1837 and has been the London residence of the Royal Family.

At The Pellicci the vibe is incredibly warm and welcoming. As for the food, the Full English breakfasts are huge and the tea is strong.

Rochelle Canteen

Rochelle Canteen hidden away behind a gate in a quiet square. It is housed in an old refurbished school canteen. The British food and nicely curated wine list are impeccable as well.

Dishoom 

Within the last few years, Dishoom changed the game by creating an Indian restaurant that looks and feels modern. 

The Wolseley

The Wolseley, an historic,  grand cafe that’s housed in a former vintage car showroom. It’s a stunning place, and the excellent food and service. It’s popular at any time of day, so book ahead.

Sketch

The Sketch restaurant is a big space is made up of several rooms, each with somewhat different themes.  As for the eating and drinking, the cakes and finger sandwiches are very  nice.

Covering 350 acres, Hyde Park is London's largest open space and has been a destination for sightseers since 1635. One of the park's highlights is the Serpentine, an 18th century man-made lake popular for boating and swimming. 

Ranking among the top art museums in the world, London's National Gallery represents an almost complete survey of European painting from 1260 until 1920. The museum's greatest strengths are in its collections of Dutch Masters and Italian Schools of the 15th and 16th centuries.

The Two Tates: Tate Britain and Tate Modern

The Tate Gallery- Tate Britain and Tate Modern – opened in 1897 and it comprise one of the world's most important art collections. 

Piccadilly Circus and Trafalgar Square

Two of London's best-known tourist spots, these famous squares lie not far apart and mark the gateways to Soho, London's lively theater and entertainment district. Trafalgar Square was built to commemorate Lord Horatio Nelson's victory over the French and Spanish at Trafalgar in 1805. Nelson's Column, a 56-meter granite monument, overlooks the square's fountains and bronze reliefs, which were cast from French cannons. Admiralty Arch, St Martin-in-the-Fields, and the National Gallery surround the square.

The market halls of Covent Garden are only the beginning of the neighborhood, which encompasses the shops and restaurants of Long Acre and other adjacent streets, those of Neal's Yard and Seven Dials, as well as the Central Square with its street performers. The halls and arcades of Covent Garden Market are lined with specialty shops and kiosks selling everything from fine handcrafts to tacky souvenirs. Housed in the former flower market, you'll find the London Transport Museum, filled with historic buses, trolleys, and trams. This area is also where you'll find the Royal Opera House.

Harry Potter Experience

 Fans of Harry Potter will definitely want to take the Warner Brother's Studio Tour - The Making of Harry Potter for a behind-the-scenes look at the creation of the movie and a walk through the incredible sets where the film was made. Visitors can explore the site on their own, see the costumes and props, wander through the Great Hall, and learn about the whole experience of filming. 

On the last Wednesday of every month, the Science Museum hosts Lates, free science entertainment.  You can explore the museum with a drink in hand.

See a theatre show

London is world-renowned for its theatre, and you're spoiled for choice with musicals, plays and kids' theatre.

Bars and clubs

You can find a few cheap bars and clubs. Also,  when there are  Happy Hour, drinks are at a reduced price. For exemple “Dirty Martini”  in the City has a daily Happy Hour.

Listen to free music

There are plenty of free gigs and DJ sets in all corners of London, mostly in the areas like Camden and Brixton. For exemple  Hootananny club offers regular free gigs and ska nights.

THE SKY GARDEN

London’s Sky Garden in Fenchurch Street is absolutely free. Perfect for a romantic evening,  it offer spectacular views over the capital to all tourist.