Ronald, it would appear that i have a soft spot for holes where you have a blind drive where you then mount a summit and a great golfing vista opens up in front of you. I am probably not alone in this. A vaguely similar analogy would be the 7th hole on the Old Course at Sunningdale - the drive is pretty forgettable but when you are top of the hill you get one of the very best views on the property. Another excellent example would be, albeit not tree lined, the 5th? at New South Wales.
in the case of the 4th, it is a difficult drive because you can get the angle wrong, so just to get into position to have a makeable shot to the green is some achievement. And then that shot itself is difficult even if you have hit a good drive - anything from a 3 wood rescue to a six iron, but most likely off a downhill lie if a shorter club. So there is a degree of challenge, and on top of that a powerful emotional sense, if that is not too strong a word, of playing a great hole. And you have just come off a great hole, and you know that in a few minutes you face maybe the greatest challenge of all on the 5th tee. All these factors inform my view.
As for 13, it is not a very controversial view that it is a great hole. Again, the drive is blind and not easy - but assuming you get to a decent spot, you again have a great golfing vista open up in front of you. And again, you know that only an excellent shot will get you home - you are probably coming in from 200 yards or so and either have to carry all the bunkers on the left, or bring it in from the right. Similar to four it is a combination of golf emotion and aesthetics, plus the technical challenge that you face.
Maybe if you are sceptical it is because the photos do not do justice to the holes! And feedback from others would suggest the photos make the playing corridors look narrower than they are. But to say these holes are merely "fairways lined by trees" would be to sell them short by a big margin! I have lots of experience playing holes like that so i know the difference between golf holes with emotional resonance and those without.
Matt, i was there for two days/two nights, played the course twice and most of the short course once. The latter is ten holes, six or seven of which are mapped on holes on the main course. Mostly they are par threes, but not all. Whereas the main course may look narrow, in fact it it is not and the playing corridors are wide. Not so the short course where it is much easier to lose balls! There is a fabulous practice faciility a few minutes drive from the clubhouse. There are two different teeing areas and i think they move them around between morning and afternoon because of weather/maintenance factors. I am not sure how big the overall piece of land is but must be pretty large as the course is sprawling, there is a short course, a few properties, driving range - and yet no sense of anything being crammed in.
Mark, i would enjoy to play PV off the back, but would need to be slightly more consistent off the tee! But you make a good point because i hit one long drive off the other markers and that did reduce a big hole into a very manageable one with only a shortish iron approach.