What about this?
Ferry the settler and worker to the hill/grass island. Settler on hill will defog and the worker can chop the forest for Elba. Then settle on the logged grass, mine the hill and net the clams. The grass tile w of corn could get a cottage which new city can work in conjunction with Elba. Send the galley to search the north island. The turn 76 border pop should reveal eastern island. The work boat might have an extra turn or two to search the sw islands before going clamming.
Ferry the settler and worker to the hill/grass island. Settler on hill will defog and the worker can chop the forest for Elba. Then settle on the logged grass, mine the hill and net the clams. The grass tile w of corn could get a cottage which new city can work in conjunction with Elba. Send the galley to search the north island. The turn 76 border pop should reveal eastern island. The work boat might have an extra turn or two to search the sw islands before going clamming.