I think gardyloo! has summed up some nice ones in my area and given accurate information.
The last years I have made some nice roadtrips in Europe as well.
I live in the Netherlands so I know my way a bit in this area
Parks I can reccomend;
Netherlands
- Walibi Holland (NL)
- Efteling (NL)
- Toverland (NL)
Belgium
- Bobbejaanland (BE)
- Plopsaland de Panne (BE)
- Bellewaerde (BE)
- Walibi Belgium (BE)
Germany
- Moviepark Germany (DE)
- Phantasialand (DE)
- Tripsdrill (DE)
- Bayernpark (DE)
- Europapark (DE)
- Skylinepark (DE)
- Heidepark (DE)
- Hansapark (DE)
Poland
- Energylandia (PL)
- Legendia (PL)
Denmark
- Djurs Sommerland (DK)
- Fårup Sommerland (DK)
- Tivoli Gardens (DK)
Sweden
- Liseberg (S)
France
- Parc Asterix (FR)
- Nigloland (FR)
Spain
- Port Aventura (SP)
- Parque Warner Madrid (SP)
- Parque de Atracciones de Madrid (SP)
Italy
- Gardaland (IT)
- Movieland (IT)
- Mirabilandia (IT)
Funfairs worth seeing in July:
- Kermis Tilburg 21.07.2023 - 30.07.2023 (NL)
- Rheinkirmes Düsseldorf 14.7.2023 - 23.07.2023 (DE)
If you rent a car and will drive around for 4 days I see the following possibilities;
Trip 1
1. Heidepark (DE)
2. Hansapark (DE)
3. Djurs Sommerland (DK)
4. Liseberg (S) (2 days in this park is recommended)
Trip 2
1. Nigloland (FR)
2. Tripsdrill (DE)
3. Skylinepark (DE)
4. Europapark (DE) (2 days in this park is recommended)
Trip 3
1. Walibi Holland (NL)
2. Efteling/Toverland (NL)
3. Bobbejaanland (BE)
4. Walibi Belgium (BE)
Trip 4
1. Phantasialand
2. Moviepark Germany
3. Walibi Holland
4. Efteling/Toverland
Offcourse you can also choose yourself and connect the dots
Here I also have a link to a handy map: https://www.google.com/maps/d/u/0/viewer?mid=1VcGhz8GRp6WUcbhVwdKqrVFg8tA&ll=50.686495078425565%2C11.518505414390056&z=6
Another hint is that you can buy a subscription card at Bobbejaanland or Moviepark and get free acces at: Slagharen, Moviepark, Bobbejaanland and Belantis. However, except for Belantis the three other parks are very good reachable with car. From my home I can reach all within about +- 1,5 hour driving.
About the traffic and others;
Netherlands
In my opinion driving is nice here, the information is clear, the quality of the roads are pretty good but at times that people go to work or finish their work there can be traffic jams.
The gasprices are one of the highest as I have seen in Europe. Also you don't want to get a ticket for wrong parking or driving too fast because it can be expensive.
Most people are able to speak English.
Belgium
It is a bit the same as the Netherlands. Difference is that the gasprices are cheaper and penalties are more expensive.
Most people are able to speak English
Germany
Be carefull at the German "Autobahn" (highway). When there is no speed limit given people may drive as fast as they want. It likely you will encounter someone driving you by with a speed of over 300 km/h (186 MPH). Penalties are rather cheap in comarison to Holland. It is harder to find parkingspots in cities here. Gas prices are also a bit cheaper then in Holland.
Most people are able to speak English
Italy
From my experience this this country is quite stressful to drive in. Speed limit seems to be taken as an advice when most people drive almost twice the restricted speed limit or so...
When you are on a paid highway it is more relaxed. In Italy there are toll roads (you pay to drive over this road).
It is harder to find someone who speaks English.
France
France also has a bit more expensive gas prices and toll roads. Driving here is also relaxed.
It is harder to find someone who speaks English.
General:
Units: Kilometers instead of Miles
Money: Euro's, Poland has Zloty, Switserland, Denmark and Sweden also don't use euro's.
Speed limits: They vary per country but are somewhat similar
Countryinfo: https://www.anwb.nl/vakantie/reiswijzer (need some translation as this website is in Dutch).
I hope this will help you and maybe others as well. I also have multiple trip preparations, routes and such if people are interested I can also post that
Cheers, Danny