On the ground floor the visitor can see the traditions and the way of life of the fishermen in Macau and South China.
The first floor is dedicated exclusively to the Great Discovery, emphasising the Maritime History of China and Portugal, since it was the sea, which brought these two civilisations together.
The second floor is dedicated to Maritime Technology and Transport and it illustrates the way Macau has been connected to the sea.
On the way out the visitor will cross a gallery of aquariums showing a riverbed, the harbour waters, a coral reef and last of all the seabed with the remains if an ancient shipwreck. Outside of the museum the visitor will find several real size exhibits, among which a dragon-boat similar to those raced during the Dragon Boat Festival." - in: http://www.macautourism.gov.mo/en/discovering/sightseeing_detail.php?catid=37
"Barrier Gate of Macau is the historic parting between the Chinese mainland and the Macau peninsula. Originally conceived as the barrier by the colonial Portuguese rulers to obstruct cultural and political exchanges between the people of China and Macau, Macau Barrier Gate or Portas do Cerco Macau is now a must in the Macau sightseeing tour.
Barrier Gate of Macau is located at the northern most point of Macau where the peninsula unites with the mainland. This Macau Gate build of granite stones traditionally marked the border between this former colonial possession of Portugal and China. Erected in 1870 to thwart the impeding Chinese nationalistic upsurge from inflowing to Macau, this Barrier Gate of Macau is now maintained as a small park. A quote of Sun Yat Sen, the father of Chinese nationalism, "Honor your country for your country is watching you" is well engraved in the stone walls of the gate.
Barrier Gate of Macau is now the chief attraction on Macau sightseeing tour. The restructured Macau Barrier Gate Square is decorated with fountains at the centre amidst green plants. The azure tiles at the side walls jointly with the sonnet of the Portuguese Poet, Camoes portray the history of Macau. This specimen of history is surrounded by modern buildings on both side housing immigration and customs." -in: http://www.asiarooms.com/en/travel-guide/macau/sightseeing-in-macau/barrier-gate.html