After an actual reading of the article, I'd add: in that situation, the Israelis decide to give them passage or not. If given passage, then the blockade is about no other ship entering the port, so the ships can be moored to something, like a fixed floating thing, or temporarily docked in Haifa. And the people + humanitarian supplies get loaded on an Israeli ship, and the Israeli ship drop them off in Gaza. If not given passage, then only the humanitarian supplies get loaded on the Israeli ship, and these get distributed.

The whole point, is that when it's blockade you don't let other ships through. That's been done by every country. If you let something through, then it's to be carried by the blockading fleet.

And before they leave, give the organizers of the trip a naval navigation map of the Northeast corner of Mediterranean, plus the navigational charts of the Dardanelles/Bosphorus and the charts of the Black Sea, with detailed coastline of Georgia, where people are in way worse conditions and Palestinian Arabs by comparison are well-off. And encourage, (and film it, to see their reaction) these activists to sail to Georgia as well, with some items for Georgians deafened by Russian rockets and artillery, and see how Russians do their blockades. Their human-itarian concerns, I assume, should be extended to all of human-ity and not just some.