Snekkja is an autonomous survey vessel designed to operate beneath jetties and marine infrastructure. It is built to withstand contact with pylons, barnacles, protruding metal objects and waves, and features a weedless propeller innovation that enables survey missions of up to 8–9 hours.
If you would like a demonstration or for more information please email: info@efrx.com.au

Snekkja uses LiDAR for SLAM, scanning surroundings with laser pulses to build real-time 3D maps while estimating position, enabling navigation and mapping where GPS is limited.

Multi-camera payload: Snekkja carries several synchronised cameras that capture overlapping images from multiple angles during each pass, enabling high-coverage inspection and accurate photogrammetric stitching to generate detailed 3D digital twins of marine structures.

Snekkja can carry a single high-resolution camera for straightforward inspections, capturing detailed imagery of piles, concrete, and marine infrastructure for visual assessment and condition monitoring.

Snekkja incorporates a range of solutions to manage weeds and underwater obstacles, including guarded propulsion, weed-resistant designs, and in some cases fan propulsion systems that reduce fouling and maintain reliable operation.