竹島

> 　 つまり、
> 　 たまたま、権利を有する国が見回っていなかった時に上陸調査しても、主権
>の表示にはあたらず、『宣言』は意思表示とみなされたんだよねぇ〜♪

いえいえ。上陸にも失敗しておりますw
「11月20日の夜、二度目の上陸の試みに失敗したあと、船は主権の表示を
島に【残さないまま】島を離れた」

↓参考までに上陸の扱い

Activities on the Islands
In order to examine the performance of jurisdictional acts on the Islands, the Tribunal must consider evidence of activities on the land territory of the Islands as well as acts in the water surrounding the Islands. 【This evidence includes: landing parties on the Islands; the establishment of military posts on the Islands; the construction and maintenance of facilities on the Islands; the licensing of activities on the land of the Islands】; the exercise of criminal or civil jurisdiction in respect of happenings on the Islands; the construction or maintenance of lighthouses; the granting of oil concessions; and limited life and settlement on the Islands.（常設仲裁裁判所 　 Eritrea-Yemen Arbitration）