The convoy entered the area earlier on Thursday in coordination with the IDF.
The temporary pier proved it was not capable of doing most of the mission envisioned.
Family members of eight American hostages will attend the DNC in Chicago, urging a ceasefire, hostage release, and humanitarian aid for Gaza.
Its hull carries slogans reading: "Free Palestine," "Gaza you are not alone" and "Stop the Genocide," while its humanitarian aid cargo consists mostly of medicines.
The decision to adjust the area of the humanitarian zone was based on Hamas's exploitation of the area, choosing to use it for terrorist activities, and the firing of rockets toward Israel.
Biden also committed to securing the safety of Palestinians in Gaza, while also committing to continuing to provide them with humanitarian aid.
"Additional resources are urgently needed to respond to ongoing needs and to prepare and respond to increasing needs in event of escalation."
UK, France, and EU urged Israel to condemn Finance Minister Bezalel Smotrich's justification of starving Gazans, calling it a war crime.
The Emirati request required that the team, arriving by boat, receive precedence in entry to the Ashdod Port, as well as an exemption for customs payments.
He also expressed concern over the “growing anger towards Israel,” which could “awaken the dark forces that could fuel antisemitism.”