Barrier islands, §12-5-232. Coastal islands, §12-2-5. Marsh islands, §12-3-241. J JEKYLL ISLAND-STATE PARK AUTHORITY, §§12-3-230 to 12-3-277. Accountability of members as trustees, §12-3-234. JEKYLL ISLAND-STATE PARK AUTHORITY —Cont’d Accounts and accounting. Maintaining financial records, §12-3-234. Appointment of members, §12-3-233.