You should be able to hike in vs. taking the ferry.
http://www.edisonlake.com
Ferry is $11 one way and $18 round trip.
http://www.edisonlake.com/hikers/ferry
Note- Taxi service down currently, due to low water.
From their website:
Hiker's Water Taxi
Our ferry boat, The Edison Queen, travels on the lake from approximately June 1st to October 1st depending on the back country snow conditions and our visitors requirements. It runs seven days a week with special departures upon request. The boat dock at the mouth of Mono Creek is less than a mile from the main PCT/JMT trail.
NOTE: Since the ferry was removed this season because of a low lake, hikers must hike into the resort. Signs have been posted at the trail junctions to direct hikers to the resort. We are offering JMT / PCT hikers shuttles to Bear Creek Cut-off and/or Bear Ridge trailheads for $10 / person upon leaving the resort.
When the water taxi is in the water, the following schedule applies (from approximately June through October):
Morning
9:00 am… Leave Vermilion Valley Resortâ„¢
9:45 am… Leave Mono Creek Landing
Evening
4:00 pm… Leave Vermilion Valley Resort
4:45 pm… Leave Mono Creek Landing
Fare for the water taxi is $11 per person one way, $18 round trip, and can be purchased in the general store.
No reservations are needed.
Special Ferry runs can be arranged throughout the day. The charge is $11 per person, with a $75 minimum.
-Tony