Mark 6:45

The apostles were in a desert place belonging to Bethsaida, which probably was divided from it by some bay or creek, that ran into the land; and Christ only ordered them to pass over this to the city, where he might afterwards have joined them, when he had sent away the people. But in their passage a great storm arose, and they were driven by an adverse wind to the open sea, towards Capharnaum; or, probably, when they found the wind so violent, afraid of shipwreck if they neared the shore, they rowed out to sea. This reconciles the seeming discrepance of St. Mark and St. John, when notwithstanding the directions Christ had given his disciples to go before him to Bethsaida, we find them going to Capharnaum. (Rutter)