hi there we went to hafan y mor at first week of season in march.
nice big site and yes it was the old butlins starcoast world ( butlins are same company as british holidays and haven)
when we went only half was open, the large boardwalk family showbar was open but not the second showbar. very draughty in boardwalk club, dont sit near doors. all included in price of park. water park was fab.
entertainment was poor, everyone left after kids entertainment but it might have improved since.
the lakeside pub over the bridge from main centre is a nice pub grub type place with special meal deals each day.
do your shopping in tesco at porthmadog as it is a rip off in the onsite store.
excellant places locally to visit include the llechwaid slate mines at blenau ffestinog, electric mountain tour at llanberris as well as the snowdonia mountain railway. portmerrian is close by and well worth a visit depending on your taste of things to do. pywelli is small with a few shops but only suitable as a stop while passing through really. lots to see and do.
we wouldnt go so early next time as im sure it would be better when fully up and running.
the only bug bear was that you have to produce your passes to get into park each time you are out.
its a huge site but well set out
make sure you get your linen hire deposit £10 back on leaving as they have a funny habit of losing your envelope with them in.
the standard of the caravans is no way like most haven sites. we paid extra to stay in a gold with heating due to time of year and to be honest have stayed in better bronzes. we were moved 3 times as previous didnt even have heating and the final one consisted only of two hot air blowers which were next to big vents in floor anyway which we sneakily covered to keep heat in. the sofas were shabby and torn with rusty fittings in bathroom and curtains which i had to put back up properly on moving in.this was supposed to be a gold which everywhere else meant only a few years old with all the mod cons. it was nowhere near and when pointed out to reception all they said was that it met required gold standards set out in brochure.
it was a little isolated and i felt sorry for folks without cars as you definately need one to get around.
hope you have a great time and hope to hear from you on your return.