Recommendation for sites in Northern Ireland please.

[PTA]

We are planning to spend three weeks touring Northern Ireland with friends in May/June next year.
We would really welcome recommendations of areas. to visit and good campsites to stay (ideally fully serviced but not essential).
This would be our first visit so all recommendations would be very welcome.
TIA

 

[Beachball]

Highview holiday park Portrush this is on Pitchup and it got fully serviced pitches and not far from there is Dunluce castle it location is stunning just the remains of the castle ,

 

[Dustydog]

Highview holiday park Portrush this is on Pitchup and it got fully serviced pitches and not far from there is Dunluce castle it location is stunning just the remains of the castle ,

Did you use the Holyhead ferry?

 

[Niall_McIntosh]

Just further round the coast from Portrush there's Ballyness Caravan Park, it reguarly features in the Top 100 Sites Guide (an archive can be found here: https://www.practicalcaravan.com/top100-archive). It's near Bushmills, and I can recommend the Distillery tour!