We arrived at the Herrenhauser main parking spot by car, and were able to find a spot within 10 Minutes.
The first place to visit were the toilets. Clean but needs a coin to enter.

After that the information desk was close by and had some good advice, while being able to buy tickets for the two gardens and the museum. There was also a shop, recommended, with several great gifts. Like local items but also Italian soaps.

Our first visit were the botanical gardens. Flowers and plants in the field and in closed atmospheres. There are plants everywhere with useful information. It is recommended to watch the botanical garden before going to the grand garden, when you arrive before 14:00 because the fountains start working only after 14:00. One main point to remember of both gardens is the vast area to cover and to walk. The best option is to decide what yo want to see and only focus on those areas. One main feature in the botanical garden is the mausoleum at the far side.

After the botanical garden we went to the museum. It’s not very big, but does offer insightful objects and paintings and information about the history and area of Herrenhäuser gardens. It might not be suitable for everyone.

At last we went to the big Herrenhäuser garden. I the beginning there can be found several small fountains and statues and views over the garden estate. It’s a good point to make selfies. The garden us vast and elaborate with lots of open space. In our visit it was quite cold and windy though, so be prepared of the weather to dress up properly with the roaming winds.
The main other feature if the garden is the bug fountain, said to be one of the biggest fountains in Europe.

One minor point is all the walking. It’s a lot and you need to be prepared.

I rate this visit in this time of year a 4/5.