We got to know this tour from the hotel lobby, and it’s Explorer tour cost 1000 CZK for an adult and 950 CZK for student. This price includes: the walk, the heated boat trip, a snack, lunch, drinks, entrance fees, coloured map of Prague and of course super guide. To join this walking tour, we just need to wait and look for the tour guide with orange umbrella sign at the Astronomical clock in Old Town Square.
Breakfast at Hotel’s restaurant 
The Astronomical clock in Old Town Square
Closer look on the Astronomical Clock. This clock is quite meticulous
and complicated, as it composed of three main components: The
astronomical dial, position of the sun and moon and some other
astronomical details like zodiacal ring, and also the time scale,
calendar and some moving figures coming out when time reached. 
The Church of Our Lady Before Týn, is an obvious and dominant feature in the Old Town. It has been the main church in Prague since 14th century.
Another view on the Church of Our Lady Before Týn.
The Powder Gate or Powder Tower located right next to the Municipal
House and it is one of the Prague’s medieval monuments. It called as
Powder Gate as it was used as a storehouse for gunpowder in 18th
century. To reach to the Prague Royal place, The Powder Gate act as the
starting point which lead through the Old Town over the Charles Bridge,
through the Lesser Town and finally go up to the hill to reach to the
Prague Castle. 
The Old Town Bridge Tower, located at the east end of the Charles Bridge, as the entrance to the Old Town. While on the other end of the Charles Bridge, is a tower called as The Lesser Town Bridge Tower which guide as entrance to the Lesser Town.
Under the Old Town Bridge Tower, entrance to the Charles Bridge
On the Charles Bridge, there are about 30 statues mounted on the two side of the Charles Bridge, which had established for more than four century. The local people believe that if a person can touch on the bronze carve on the statues, it can bring him or her some good luck. Unfortunately, I was unable to put my both hand on the carve at the same time --- well, my hand not enough long. We had a boat ride with some hot refreshments that served on boat. Below are some of the view from the boat:
Church of St Salvator, Clementinum
Statue of Charles IV or also known as the Monument to Emperor Charles IV located near the Old Town Bridge Tower.
Guide at the entrance of the Prague Castle
Saint Vitus Cathedral is the biggest church in the country and located within the Prague Castle. It is huge and magnificent both inside and outside of the building.
The back part of the Saint Vitus Cathedral.
The inner part of Saint Vitus Cathedral Christmas market in Old Town Square
Night scene in Prague
