The biblical story tells that Kadesh was the base for the Twelve Spies also went on their way from Kadesh. There are many proposals as to where is Kadesh, but academic research in modern times is suggesting that Kadesh should be identified next to the Israeli-Egyptian border, on the Egyptian side, not far from Nitzana, Israel (the area of the Ein Kudis and Ein Kudirat springs).
The site was excavated when Sinai was under Israeli rule. The excavations showed that this location had 3 levels of a fortress that was part of the Jewish Kingdom, First Temple period.
You cannot find in archaeology remains for this site being the departure site for the Twelve Spies or the site of Moses rock. But from the research, it seems this was the site called Kadesh 3000 years ago, and that according to the biblical descriptions, it should be found in this part of the country (and not in trans Jordan).