After making it to Emerald Pool, the track continues on to Captains Hut and further. If you plan on doing this, check out the cache page of beltfamily's 'O Captain! My Captain!' (GC2085A) cache for times, distances and warnings.
However, if you have come prepared for the Emerald Pool cache, you won't need to take any extra precautions or equipment to do this cache. Just another 10 minutes of your time and enough ink in you pen to sign the extra log.