Personal submarine
# Personal submarine

A personal submarine is a submarine, usually privately funded and constructed, which is usually primarily intended for recreational use.

Some are also used for scientific or military purposes.

Other uses include tourism, filming, water sporting, rescuing and spying. Some are as long as 285 metres (935 ft) with capacity to stay underwater for several weeks (e.g. Migaloo submarine yacht). Those personal submarines which are available for sale cost from US$16,000 to 2+ Billion USD. A wide range of them is available from 1-person to 34+ occupants, some can go just 12 meters underwater and some can even reach to Mariana Trench.

Such submarines can be designed from scratch by the builder or built to available plans.

## Records

Timeline of deepest dive, solo, in a submarine, men :

| Date | Depth | Sub pilot | Sub | Notes |
| - | - | - | - | - |
| 1985 | 914 metres (2,999 ft) | Graham Hawkes | Deep Rover | |
| 6 March 2012 | 8,166 metres (26,791 ft) | James Cameron | Deepsea Challenger | |
| 26 March 2012 | 10,898 metres (35,755 ft) | James Cameron | Deepsea Challenger | Dive to the deepest point on Earth, the Challenger Deep. |

Timeline of deepest dive, solo, in a submarine, women :

| Date | Depth | Sub pilot | Sub | Notes |
| - | - | - | - | - |
| 1986 | 1,000 metres (3,300 ft) | Sylvia Earle | Deep Rover | Tied record set by Graham Hawkes in the same sub. |
