nostr:npub1psdfxfpxz2cwmmnsk60y3nqpn2tqh9n24h4hstvfkwvr6eaek9js499sr7 nostr:npub156pnpjyj8639pnscuu3qc7hhh6cgnr8u75tn8wtkgs4da9je2lmqmck0fk 
I believe there’s a DFDS ferry from Newcastle to Amsterdam (15.5 hrs overnight) that takes foot passengers.