Going hiking on the weekend qualifies as a way to relax.
Tips
grammar
Pattern: X 不失为 Y. Used to give Y a faint-praise endorsement — 'X may not be ideal, but it does count as a Y'. Y is always something positive. Often paired with 虽然...但... 'although...still...'.
register
Slightly written/formal — common in op-eds, reviews, and considered opinion. Casual speakers say 算是 instead.