Mark 6:32
So, they [i.e., Jesus and His apostles] left by boat and went to a separate place [where they could be] alone.
Matthew 14:13-21
Now when Jesus heard about it He left there in a boat and went [across to the east side of the lake] to a deserted place. When the crowds found out [He was leaving] they followed Him [i.e., by traveling around] on the shore from the [surrounding] towns.
Mark 3:9
He told His disciples to have a small boat waiting for Him [i.e., from which He could address the people. See 4:1], to prevent His being thronged by the large crowd.
Mark 4:36
And leaving the crowd, the disciples took Him in their boat just the way He was [i.e., this probably means without His making provision for the trip]. They were accompanied by other boats also.
Mark 6:45
And about then Jesus compelled His disciples to get into a boat and go on ahead of Him to the other side [i.e., to the west side of Lake Galilee] to Bethsaida [Note: This was apparently a different "Bethsaida" from the one mentioned in Luke 9:10, which was on the east side of Lake Galilee], while He Himself sent the crowd away.
Mark 8:2-9
"I feel deep pity for this crowd because they have continued listening to me for three days now and have nothing [left] to eat.
Luke 9:10-17
When the apostles returned they told Jesus what they had done. Then Jesus took them and went away privately to a town called Bethsaida. [Note: This town was on the east side of Lake Galilee, and apparently was a different "Bethsaida" from the one mentioned in Mark 6:45].
John 6:5-13
So Jesus, looking up and seeing a large crowd coming to Him, said to Philip [Note: He was one of the apostles, whose home town was at nearby Bethsaida. See 1:44], "Where are we going to buy [enough] bread, so that this crowd can eat?"