The remainder of the party had sailed…

The remainder of the party had sailed on August 22 for Kamchatka.

Had the route been charted, they should have sailed around the peninsula and made port on its eastern coast; instead, they land on the west and make a grueling trip from the settlement of Bolsheretsk in the southwest, north to the Upper Kamchatka Post and then east along the Kamchatka River to the Lower Kamchatka Post.

This Shpangberg's party had done before the river froze; next, a party led by Bering had completed this final stint of approximately five hundred and eighty miles over land without the benefit of the river; and finally, in the spring of 1728, the last party to leave Bolsheretsk, headed by Chirikov, reaches the Lower Kamchatka Post.

The outpost is six thousand miles from St. Petersburg and the journey itself (the first time "so many [had] gone so far") has taken some three years (Frost, Orcutt William, ed. (2003), Bering: The Russian Discovery of America, New Haven, Connecticut: Yale University Press).

The lack of immediate food available to Spangberg's advance party had slowed their progress, which hastens dramatically after Bering's and Chirikov's group arrives with provisions.

As a consequence, the ship they have constructed (named the Archangel Gabriel) had been readied for  launch  as soon as June 9, 1728,from its construction point upriver at Ushka.

Fully rigged and provisioned by July 9 the Gabriel on July 13 sets sail downstream, anchoring offshore that evening.

Bering's party begins their first exploration on July 14, hugging the coast in not a northerly direction (as they had expected) but a northeasterly one.