London Telegraph 
May 30, 2011
North Korea has nearly finished building a sprawling naval base for “attack hovercraft” near the tense sea border with South Korea, according to a government source close to leader Kim Jong-il.
The base will be capable of housing 60 “air-cushioned craft for infiltration attacks and landing”.
South Korea has “spotted air-cushioned vessels and hangar-shaped buildings,” at the North’s Hwanghae Province, about 30 miles from the South Korean island of Baengnyeong, the South’s Yonhap news agency reported.
In November last year two South Korean marines and two civilians were killed after North Korean artillery shelled Yeonpyeong island.