Durdle Door is on Dorset's coast line, which is less than 2 hours drive from London making it a perfect destination for a family day out. There is something out there for everyone!
For someone who loves sceneries, they can get some food, sit at the the beach and eat the food looking at the arch. In another words, it's the best place to enjoy a picnic. The alternative is to go there with your friends and enjoy a barbecue at the beach.
For those of who like to hike, there is a little bit of hike to reach the beach. Make sure to wear your trainers. The hike will be worth it as it leads to a beautiful beach! Most of the people try to settle down at the beach when the hiking trail ends, but make sure to walk towards the end of the beach and it will surprise you with white cliffs. It's an amazing spot for good pictures :)
Most of the people prefer to go to Durdle door in summer, however, if you are someone who likes to stay away from crowds then autumn is your best bet.
Hope these tips have helped you and don't forget to take loads of pictures as this an absolutely beautiful place.