Do u need a passport from scotland via dunegal going by ferry
No
NO
do I need a passport to travel from south wales UK to jersey
Not unless you need a passport to visit Weymouth.
If you have a French Passport, you might require a US visa to travel to Jersey.
No, you do not need a passport just a form of photo ID.
no
this question doesn't make sense as Scotland is in the UK. If you mean "do you need a passport to travel between England and Scotland" then the answer is no. Unless you are flying, in which case you will need some form of photo ID such as a passport or driving license.
No.
yes
unfortunately you do