**Preview map is LOW RESOLUTION. See gallery below for HD sample images**
- Description: High definition 3D images of the seafloor.
- Location: Nihoa to Hawai’i
- Size: Approximately 318,400 square miles.
- Depths: 3,500m and deeper except around the islands and sea mounts.
- Works on: Lowrance, Simrad, B&G, VesselView, iPhone, iPad, Android tablets, and PC.
- Resolution: Best around the islands.
- Notes: This is a massive chart, both in terms of square miles and file size (>20GB).