https://www.gamespot.com/articles/fortnite-guide-film-cameras-search-between-a-scare/1100-6458797/

Season 4 of Fortnite: Battle Royale's Week 2 challenges are still available, providing players who own the Battle Pass with seven different objectives to complete. Some of these make use of new Season 4 gameplay elements such as Hop Rocks, while others offer more challenging tasks that could require the use of a map to complete. Here are the locations for all the key objectives and some tips on how to get them done. [Update: Epic has released all Season 4 challenges, and you have until July 12 to finish them.]

Reward: 5k XP (after completing four challenges)