The Magellan eXplorist 510 Marine Edition provides boaters with a custom selection of best-in-class Navionics marine navigation charts and data plus a rugged, waterproof handheld Magellan eXplorist 510 Outdoor GPS device featuring easy-to-use menus, a built-in camera and a 3-inch sunlight-readable color touchscreen.
For maximum convenience to consumers, all Navionics charts and marine data are pre-loaded on a single MicroSD card that is included with the eXplorist 510 Marine Edition.
The Tarawa calamity was already a Pacific legend: how naval intelligence, relying on obsolete charts, had miscalculated the tides so flagrantly that the Marine troops in their landing vessels were forced to disembark on coral reefs and then wade ashore for hundreds of yards, exposed to killing fire from Japanese machine guns.