Blue star ferry or other slow ferry from Santorini to Crete

We have taken that ferry with no problem with sea sickness.

I may be wrong but I do not recall any slow ferries from Santorini to Crete. There are several fast ferries that do that run. They are large ferries carrying 1,500 to 2,000 passengers. They are stable.

Thank you all for your responses, I am probably being too worried. I am going to go ahead and book the fast jet.

I would expect the slow ferries to be more likely to cause nausea. I have a lot of trouble with motion sickness, had no issues on the fast ferries from Crete to Santorini or Santorini to Naxos.

Slow ferries have outdoor rear decks where you can sit for entire voyage. Also, people who' ve not been to Greece think that slow ferries are something like the ferries from Staten Island in NY, or the Seattle Ferries, or even the ferries that go to Marthat's Vineyard. No. BLUE STAR Ferries are like the Small Ocean Liners of the 1960s-80s ... 4 decks, 1800 passengers, lounges, restaurants, vehicle deck etc. When I'm sitting in my spacious reserved-economy seat, the liquid in the glass on my tray doesn't even move. During late spring through mid-summer, when there are few winds, there is not even a sensation of moving on these big vessels. This is similar to most of the big conventional open-deck ferries, including those that go overnight from Piraeus to Crete.

Janet, thank you for your response. I've never been on the ferries you mention in New York, etc., but I was very much hoping to experience one of the slow ferries in Greece. We definitely want to use the ferry to get from Santorini to Crete, versus flying, but I might also use ferries to go from Athens to Santorini, we can add an overnight stop in Paros and get to experience the Bluestar ferry with the cabins, still trying to decide if my family is up to three ferry rides though.

In April, the 16th, 22nd, 27th and 30th (please double check the date) there is a traditional ferry between Santorini and Crete. It is the "Prevelis" of the company Anek Lines.
I've never taken it but it's the same style as the Blue Star
see this video:
https://www.youtube.com/watch?v=y_vHCvUY8Bs

The port of arrival in Crete of Prevelis can be Heraklion or Sitia.

Schedules and reservations at : https://www.anek.gr/en/routes/

Concerning Athens - Paros with Blue Star Ferries, you don't really need to book a cabin, the crossing time is very short (about 4 hours)

JoLui, thank you for the information, it is a beautiful looking ship, unfortunately on their website I could not find anywhere that said they sailed from Santorini to Crete.

unfortunately on their website I could not find anywhere that said
they sailed from Santorini to Crete.

The last route Santorin-Crete displayed is April 30.
Since you indicated "the next couple of weeks" I assumed it was for a trip in April.

This ferry has different routes in winter and summer, It is possible that April 30 will be the last trip for this season.

JoLui, my apologies, I see I was not as clear as I should have been. Thank you for your patience.