Legs (specifically in an informal context)
Feet (informal/slang usage)
पैर
English Usage: After the hike, my patas were sore.
Hindi Usage: हाइकिंग के बाद मेरे पैर दर्द करते थे।
To paddle (in a colloquial sense)
paddle करना
English Usage: They decided to patas around the lake.
Hindi Usage: उन्होंने झील के चारों ओर paddle करने का फैसला किया।