Greta Thunberg was seen laughing as her flotilla set off again for Gaza after it was forced to turn back just hours after leaving Spain.
The activist appeared to be in good spirits as around 20 boats flying Palestinian flags left the Spanish port yesterday evening with food and medical aid on board.
The group, which includes 350 campaigners, says the mission is aimed at 'breaking Israel's illegal siege on Gaza' and opening a humanitarian route.
The convoy first tried to leave on Sunday but returned to port because of stormy weather.
This time, the activists hope to join a second wave of ships sailing from Tunis next week before heading towards Gaza, a journey expected to take about seven or eight days.
