물때 타이드
조수 관측소
Old Point Comfort
해류 관측소
0.2 mile south of
0.55 n.mi. east of
0.9 mile southwest of
Hampton Roads entrance, midchannel
Thimble Shoal Channel, 2.4 n.mi east of Ft. Monroe
Thimble Shoal Channel (west end)
Willoughby Spit, 0.8 mile northwest of
