Alicia.

About Alicia

Alicia is a 6-seater submarine designed and built by Marlin Submarines of Plymouth, England. It was designed primarily for research and tourism purposes and could reach depths of up to 305 m (1,001 ft). It includes a forward section constructed from transparent acrylic panes for greater visibility, as compared to the portholes of traditional submarine vehicles. Alicia was pressure tested down to 410 m (1,350 ft). The budget was US$1.5 million, and the final cost ended at US$2 million. Adjusting the dive angle is partially accomplished by sliding the battery holder, weighing 1,750 kg (3,860 lb), back and forth on rails.