Beach

 When I opened the beach challenge there was a login portal with an image on the top.

Now, whenever you see an image in the CTF challenge it is steganography. Steganography is to hiding data in media for like audio, video, and images. 

Whenever you see the image in any challenge try to open the image with any text editor to see if you can read something. 

Now, if the challenge is too easy you will find some plain text words in the text file of the image. 

Here I am going to use "Wordpad" to open the image. Obviously, you have to download the image.

After opening the image in Wordpad you can find out there is one readable word except for all the boilerplate "james". Note it down somewhere and let's further investigate the file. to find some other word.

There are many names in the file like James, Kim, etc. but then there is another word that is not a name.

It's chocolate, Now let's wait here and try some combinations of these words on the login portal. 

And because it's an easy challenge we get hit on the first combination, which is james and chocolate as username and password respectively.

And Boom You solved the challenge.