The Aqua2 Mk3 is a fully autonomous underwater vehicle built for efficient inspection, mapping, and data collection in complex aquatic environments. It integrates an onboard GPU for real-time vision and navigation, ensuring accurate, obstacle-free performance. Lightweight and single-person deployable, it supports both autonomous and semi-autonomous missions using an intuitive mission planner GUI. The system’s grounded AI ensures stable operation and intelligent decision-making underwater. Safe for divers and ships, Aqua2 Mk3 enhances mission productivity while minimizing operational risks. Ideal for research, defense, and infrastructure assessments, it combines speed, safety, and intelligence in a portable design.