Wanted to review while it is all still fresh as I spent hours researching before we went and found it so helpful. We flew to Schipol and then got the train to Leiden. We had a walk around Leiden - beautiful place. As we had so much luggage, we decided to get a taxi to Duinrell instead of the bus, but were completely ripped off by the driver - 46 Euro for a 10km journey! We later discovered it would have been better to have got the train the the Hague and then a number 444 or 44 bus to the front of Duinrell park. The bus station is right upstairs from the train station and very easy to use, the drivers were all very relaxed so getting luggage on and off would not have been a problem. The bus from Leiden drops you off in Wassenaar, about a 10-15 min walk to Duinrell - far enough with luggage.
We booked direct with Duinrell and decided on a premium duingalow. We found the accommodation brilliant - spacious enough for a family of 5 and well stocked with kitchen ware. Only complaints were no oven (which is apparently standard in Holland) and the outside terrace was filthy with bird poo and desperately needed hosing down, we had to wash the furniture before we could use it. Aside from that, the place was perfect. Our location was very quiet, for anyone looking on a map, it was right over to the south west of the park. We chatted to people who were staying over towards the east of the park, near the 2nd playground and they said it was extremely noisy. The only noise we heard was some celebrations after a football match (Euro 16 was on) which actually made for a nice atmosphere. We were very lucky to have brilliant weather during our stay. We got two hours free in the pool daily which we rarely missed, it is a great pool but incredibly busy and noisy with big queues for everything, including changing rooms. Once in, it is great though. The amusement park is fantastic too - we really didn't queue much at all and the rides and staff were brilliant. Plenty for all of us - two adults, children 11, 8 and 4. They had an absolute ball. The amusement park closes at 5pm which was a shame but the children's playground remained accessible and the pool opens until 10pm. None of the food and drink places around the park opened past 5pm which also seems a shame. The only things that you need to pay extra for are bikes (we didn't bother), mini golf and adventure mountain. Bikes would be handy if you want to visit the beach as it is a couple of miles away, however we instead went to a beautiful beach outside the Hague, in Scheveningen, gorgeous place with lovely restaurants on the beach where you can relax while the kids play.
We didn't particularly enjoy the food places and preferred to eat out in Wassenaar which is a lovely little town right across from the park. We used the supermarket a lot though and also one in Wassenaar which was better value.
We went on two day trips. We got the bus from the front of the park (incredibly handy) to the Hague, we spent a day there and the other day we travelled on from there to Delft. Both were lovely and well worth going to.
The park itself is clean and tidy, very quaint and vintage which is right up our street. Just beware when out and about as the oaths are shared by pedestrians, cyclists/go karts etc and cars so can get a bit scary. I was hit by a cyclist who came flying round a corner and just kept on not a bit phased! We couldn't let the children out of our site for this reason, whereas on holiday we usually would let the older two have a little freedom. The people we knew staying on the other side of the park said they were able to let their children out as there were so many people around it felt safe - few bikes etc. They said the children all played well together and had huge water fights etc, we didn't have anything like that in our bit but we preferred the quiet to be honest haha. They said it stayed noisy until 11pm every night whereas we rarely heard anything.
All in all the positives by far outweighed the negatives, just wanted to give an all round review of everything, good and bad. We will definitely return!!!