Final answer:
The sentence contains a mistake in punctuation and verb usage, which can be corrected by removing the unnecessary verb and comma.
Step-by-step explanation:
The correct answer is:
Three of my favorite activities are drawing, biking, and swimming in the lake near my house.
In the original sentence, the word "to" before "go swimming" is incorrect because the verb "to go" is unnecessary. The correct form is "swimming." Additionally, there should not be a comma after "biking."
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