Numbers 33:7-8

7And they set out from Etham and turned back to aPi-hahiroth, which is east of Baal-zephon, and they camped before Migdol. 8And they set out from before Hahiroth
Some manuscripts and versions Pi-hahiroth
and cpassed through the midst of the sea into the wilderness, and they dwent a three daysjourney in the wilderness of Etham and camped at Marah.
Copyright information for ESV