Original: A cable car can take you see breathtaking mountain views without taking much time or trouble.
What's wrong: The sentence is missing the word to after "take you". We can also make it sound more natural by using a different verb.
Corrected (keeps the original structure):
A cable car can take you to see breathtaking mountain views without taking much time or trouble.
Simpler version (easier for a 7-year-old):
A cable car can show you beautiful mountain views quickly and easily.
Short explanation: Use "take you to see" when you mean going somewhere so you can look at something. Or use "show you" to make the sentence shorter and simpler.