SRN4 used to go from their own terminal there run by Sealink, an associate of British Rail. At least believe it was the SRN4.
Noisy buggers because as mentioned in the article all the forward propulsion was in the open upstairs (on the roof). Ergo being inside could be a bit uncomfortable. Partly also because of vibration.
On the other hand for those liable to seasickness even on the short trip to Calais it was a godsend.