If so, were they aware of the vast quantities of land across the strait? Was trade ever done?
More can always be said, but you may be interested in these older answers to similar questions:
https://www.reddit.com/r/AskHistorians/comments/1fmljj/how_come_america_was_not_discovered_via_the/cabrg0t/
https://www.reddit.com/r/AskHistorians/comments/14xfpp/russia_is_so_close_to_alaska_why_didnt_the/c7haxb5/