It is a 1/4 mi walk to Long Lake with a reservation on Recreation.gov it is a little over two to Lake Isabelle. It opens in July and closes in October most years.
We had to make a reservation to park at top lot.
Reservations are tricky to get for anything before 11 a.m. in the morning. Consider getting reservations at the "Niwot Picnic Area", about an extra quarter mile distant.
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