Where was “Wadal Ungtong Cove” (臥達雄通邱尾) in 1882?

Could the “Wadal Ungtong Cove” (臥達雄通邱尾) described in Ulleungdo Inspector Lee Gyu-won's 1882 diary entry have been the gap between Gwaneumdo and the main island instead of where Wadal Village (臥達里) is today? Could the rock sticking out from the main island have been considered a part of Gwaneumdo, which would explain why it was described as "a harbor inside the island"? Did the name 通邱尾 (통구미) describe a kind of cove that could be passed through since  通邱尾 literally means "a passing-through cove"? Or maybe the cove was where they built the 6-story tower leading up to the rock that crosses over to Gwaneumdo, as can be seen in the second and third pictures?

Read the description of the cove from Inspector Lee's 1882 report, and then consider the two picture below it. I got the first picture from the video below at about the 2-minute mark. It is quite an interesting video.

After describing Ulleundo's two neighboring islands, “Dohang” (島項) and  “Jukdo" (竹島也), Ulleungdo Inspector Lee then wrote the following:

Inside them is a harbor named (其内浦名) “Wadal Ungtong Cove” (臥達雄通邱尾), but the current is very strong (而水勢太強), so a ship would have difficulty entering (船路難進). Even on a day with no wind or waves (雖無風無波之日), the rocking of the ship (船之搖動) is like that of a lightly drifting gourd dipper (如瓢子輕漂之像). It is a place one must be extremely careful (極其操心處也). Therefore, I carefully look left and right at the stone walls (仍察左右石壁), which are layers of large and small rocks (大小層巌). They look strange and dangerous (則形容危険奇恠). The tempo of the tide going in and out (潮汐進退緩急) is sometimes like the sound of a beating drum, and sometimes like the sound of a ringing gong (箇中自有鼓鼓然錚錚然).  It is the tempo of music (音楽之節奏矣).

By the way, while watching the video, consider where "Ship Plank Cove” (船板邱尾) might have been. Remember! It was a cove with a long valley behind it where there were traces of trees being dragged.