Under the deal, migrants landing in Greece are now expected to be sent back to Turkey if they don't apply for asylum or their claim is rejected.
But it hasn't stopped the hundreds of men, women and children who continue to arrive on the Greek Islands.
As the sun rises over the Greek island of Lesbos, a boat filled with migrants coming in from Turkey is escorted to shore.
Many of those on board are unaware of the new rules in place which, if implemented properly, would see them sent back across the waters they just braved.
For Syrian man Hussein Ali Muhammad the news is frustrating.
"I want to go to Denmark and complete my studies. I worked very, very hard work in Turkey; I collected the money for coming here. After that, 5 minutes, I go back to Turkey? It's very, very dangerous and very, very... not good."
The deal reached between Turkey and the European Union aims to close the main route by which a million migrants and refugees poured across the Aegean Sea in the last year.
It involves Turkey taking back all migrants and refugees, including Syrians, who cross to Greece without prior approval after March the 20th.
But in return, the EU would accept thousands of Syrian refugees directly from Turkey and reward the country with more money, early visa-free travel and faster progress in EU membership talks.
Europe has even pledged to help Greece set up a task force of around 4,000 people - including judges, interpreters and border guards - to manage each case individually.
But Dan Stewart, from the aid agency Save the Children, remains sceptical that the plan can be carried out effectively.
"We know that at the moment the asylum system in Greece is already overwhelmed, so it's very difficult to see how people coming to the island will receive the individual assessments and individual support they need in order to claim asylum in Greece."
Trying to make the best of a bad situation, Kurdish families stranded at the Greek border camp of Idomeni celebrated the Persian New Year -- Newroz.
The camp is home to more than 10,000 people who've been sleeping in muddy fields amid freezing temperatures and food shortages.
As hundreds gathered around bonfires many, including Syrian man Sardar Hami, could do little but lament the new rules.
"Unfortunately we feel frustrated, especially after the European Union's deal with the Turks. The atmosphere is depressing. The situation here is tragic. All I can say is that we are frustrated and overcome with sadness."
However the deal appears to have had some effect in several Turkish seaside towns.
Until now the secluded beaches and forests of Ayvalik have been a hotspot for migrants crossing into Europe.
But locals, including shopkeeper Dilber Tavsanli, say that's all changed.
"It's been significantly calmer the last couple of days. There are no refugees around. Yesterday only three foreigners came for shopping. Today, no one is around."
The expulsions and resettlements are expected to start in early April.
