The island is about NUMBER@1 x NUMBER@2 miles -LRB- NUMBER@3 x NUMBER@4 km -RRB- in extent , the highest point being NUMBER@5 ft -LRB- NUMBER@6 m -RRB- on LOCATION@1 .

The island is about NUMBER@1 × NUMBER@2 miles -LRB- NUMBER@3 × NUMBER@4 km -RRB- in extent , the highest point being NUMBER@5 ft -LRB- NUMBER@6 m -RRB- on LOCATION@1 .
