May 20, 2018 - 12:00 AM
Grindelwald has a lot to offer. At the end of two days you'll be wishing you had more time! Everything hangs on the weather though. The big attraction is the Jungfraujoch which is spectacular and will take up at least half a day. If you'd rather look at the mountains than be on them, take the gondola to First (pronounced Fearsht) and walk to the Bachalpsee, or take the gondola to Männlichen and walk back via Kleine Scheidegg and Alpiglenn. There are other fun activities such as Trotti Bikes, the First Flyer and Mountain Carts, and the Rodelbahn (Tobogan) at Pfingstegg
The last time I was in Grindelwald, my wife and I flew with a company based in Interlaken. For our next trip we would like to fly closer to Grindelwald, so I have been looking at a company called Paragliding-Jungfrau which has an office in Grindelwald. I haven't flown with them before, but Paragliding is well regulated in Switzerland and I would expect any company to be safe, friendly and professional. Have a look at their site to get a feel for what's on offer.
As far as cold weather goes, August is mid-summer, so you are more likely to have trouble with the heat. Keep in mind though, temperature decreases 1 Deg Celsius for every 100 metres you go up. Grindelwald is at an altitude of 1034m. The Jungfraujoch is 3466, so the Adiabatic temperature difference is 24 Deg. I usually take a fleece vest and full wet weather gear with me, regardless of how the weather is at the start of the day because it can change very quickly. I've seen lots of visitors getting into cablecars and gondolas in the valley not wearing appropriate gear (Like the woman at the Jungfraujoch stepping out onto the snow Plateau in open toed high heels), but if you can keep any wind and rain out, you'll be fine.
You're going to have a blast, and if you could post a little trip report when you get back, that would be great!