it is an enviromentally-friendly helicopter

What kind of energy will it use ?- it will use biogas

what will it look like?- it looks like a helicopter.

what teachnology will it use? flying, sufting on the water.

there are 4 seats here. 

1, How far is it from Ho Chi Minh City to Vung Tau?

2, We take part in a lot of outdoor activities in summer.