Kann ich leider nicht beantworten.

No lo se, pero si buscas en Google seguro lo dice. Suerte y a disfrutar

London allgemein ist eine sehr schöne Stadt und auf jeden Fall sehenswert!

Noooo, es gratis. Puedes entrar por diversos lugares y desde el metro, bus, taxi. Cualquier medio. Puedes atravesar Londres a través de sus parques, solo cruzando . Son maravillosos.

There aren't entry fees for Hyde Park

Hola! Sí puede alquilar bicicletas. Hay algunas plazas, donde puede alquilar las. Puede hacer, que quiere.

I didn't. See a possibility to rent bikes in the park but you can ask insourcing hotel where to get citybikes

Being that Hyde Park is such a huge outdoor venue, I would expect that you would be able to take a picnic blanket, like most outdoor events. It's best to contact the organisers of the event itself just to confirm this. I've been to Proms in the Park, at Hyde Park, and picnic blankets were more than welcome.

Hi, yes that should be fine, it’s also on in st James park & green park. Hope that helps.

Hi, one is the closest, then two & your right tier 3 at the back. But there’s large screens so you don’t miss anything. Plus the less tickets are sold the near you will be. And they won’t let anyone in with soft or hard drinks. They charge £5 for a bottle of water, which is nice of them, lots of people sit out of the concert area & can still see the screens & have a drink soft or hard. So stop worrying & have a great time on the day & take no drink. Hope that helps.