This project is a demonstration system for an underwater tour virtual experience, which focuses on the use of digital twin and drone technolo- gy to enable an immersive tour experience for underwater travel adven- tures. The project consists of an above-water underwater tour robot system and a digital twin platform system, creating a whole set of sys- tematic virtual reality experiences.

It consists of an above-water underwater tour robot system and a digital twin platform system: the robot is assembled in a 3D-printed housing with a self-designed modular integrated motherboard, and the digital twin system is built in a UE5 environment.This allows visitors to enter the underwater city with all their senses and experience the mystery of the underwater city and its prosperity through the millennia.