Compact Semi submarine - A better way to explore reefs or tropical seas without actually getting wet. Instead of using a rudder and outboard motor, it is run by electric padded propulsion with a battery-powered BLDC (Brushless DC electric motor).It works as both a motor boat and a two-seater submarine and the best part-it’s all electric.It uses a Trojan T-890 battery pack such as what is found on golf carts. With an all-electric motor, it is likely far quieter than standard boats.The battery pack allows a user to go 8 hours at cruising speed or 4 hours at top speed between charges, but it takes between 6-9 hours to recharge. The compact semi-submarine showcased at the Miami Boat Show --functions as both a motor boat and as a sub that seats two just below the water surface.It helps anyone to explore undersea easily and conveniently.You don’t even need to know how to swim. There is no complicated control or operation of the boat. Anyone can easily control, operate and is perfectly comfortable and absolutely safe. It is not airtight as submarine. And also, you can escape from the boat very fast and easy in emergency situation, and this is the biggest advantage comparing with submarine. It is a boon for marine life already subject to human-generated noise pollution.