| Acadia Bike & Coastal Kayaking Tours | June, July and August are 8 a.m. to 5 p.m., and from 9 a.m. until 5 p.m. in May, September and October |
| Acadia Mindfulness Adventures | year round |
| Acadia Repertory Theatre | June to September |
| ArtWaves | year round |
| Atlantic Brewing Company | Town Hill Tasting Room is closed for the winter! |
| Bar Harbor Cellars | Tuesday - Sunday 10AM - 5PM. Closed Mondays. |
| Beal and Bunker | Starting August 31, we will begin operating on our Fall Schedule |
| Camp Capella, Inc. | Closed for private rentals - see you again in 2024! |
| Charlotte Rhoades Park and Butterfly Garden | Dawn to Dusk thru mid-October |
| Cranberry Cove Ferry | Memorial Day Weekend through October 1 |
| Down East Nature Tours | All year |
| Downeast Scenic Railroad | Closed for the season - see you in 2023! |
| Downeast Windjammer Cruises | Late May - Mid October |
| Get Out Sailing | 10:00am - 8:00pm |
| Golf of Maine | Daily 9AM - 8PM until November 3 |
| Great Cranberry Island Historical Society | Memorial Day thru Columbus Day 10:00-4:00 |
| Island Cruises | Book now, trips begin 6/3/24 |
| Island Time Ebike Rentals & Tours | Daily 9AM - 5PM |
| Lobster Boat Cruises / Sail Acadia | May 1 thru mid-October |
| MDI Community Sailing Center | office: Monday - Friday 9AM - 4PM |
| Mount Desert Island Historical Society | Somesville Museum Hours: Open June 17-September 2. Sound Schoolhouse visit by appointment |
| National Park Canoe and Kayak Rental | May 15 |
| Sail Acadia | May 1 thru mid October |
| Seal Cove Auto Museum | 10AM-5PM May 1st through October 31st |
| Southwest Cycle | Monday -Saturday 10Am - 4PM |
| Southwest Harbor Historical Society | : 1st & 3rd Wednesdays 1-3PM and 2nd & 4th Saturdays 1-3PM |
| Southwest Harbor Public Library | Mon-Fri 9am-5pm Sat 9am-1pm. Curbside Pickup Service available |
| The Maine Granite Industry Historical Society | Tuesday - Sunday 10-4 Open by chance on Mondays ALL YEAR |
| Tremont Historical Society | Fridays July 10 thru September 25 by appointment only |
| Wendell Gilley Museum | Friday & Saturday, 10-4pm thru April 2025; with some evening programs |
| Archie's Lobster | Closed for the winter! |
| Beal's Lobster Pier | 11AM-8PM Daily, thru Oct. 21 Starting 10/22: 1-8 daily! |
| Bub's Burritos | Closed for the season |
| Cafe 2 / Eat-A-Pita | Closed for the season but we will be open on October 20 for the MDI Marathon! |
| Cafe Drydock | The Inn is open year-round! The Restaurant is closing for the winter and will reopen in May. |
| Clark Point Cafe and Catering | : Thursday-Sunday from 7:30am-12pm thru 11/24 |
| Common Good Soup Kitchen | Dinner Wednesday 4-7 Pantry Sunday 12-2 |
| Fogtown Brewing Company | Monday & Tuesday: Closed - W, Th, Sun: : 3 PM - 8 PM Friday & Saturday: 3 PM - 9 PM |
| Frankie's BBQ | Mid May to the end of September, closed Thursday . 11AM to 4:00PM |
| Harbor Table | Dinner Monday-Friday 5-9pm |
| Next Level Sports Lounge | Monday to Wednesday 3-9, Thursday to Saturday 3-10 Sunday 12-close |
| Peekytoe Provisions | NOW OPEN at 244 Main Street in Bar Harbor! 12-8:30 Wednesday-Sunday :) |
| Peter Trout's Tavern and Inn | closed til early December |
| Red Sky Restaurant | Closed for the season |
| Rodick's Take Out | Daily Noon-7:30 |
| Salt Shop | Starting 9/3 11AM to 8:30PM |
| The Claremont Hotel & Little Fern Restuarant | closed for the winter |
| The Nor’Easter Pound & Market | CLOSED FOR THE SEASON, SEE YOU IN MAY 2025. THANK YOU FOR A GREAT 2024! |
| The Upper Deck | Effective 10/15/2024 closed for the season |
| Thurston's Lobster Pound | Closed, Thurston’s will reopen Memorial Day weekend 2025 |
| Acadia Cottages | Seasonally from Mid-May to Mid-October |
| Anna's Quietside Cottages | Year-round |
| Ann's Point Cottages | All year |
| Ann's Point Inn | July & August |
| Drydock Inn | The Inn is open year-round! The Restaurant is closing for the season November 2nd!!!! We will re open the middle of My. |
| Harbor Oasis | May through October |
| Harbor Ridge Resort | All year, 8am-9pm |
| Harbor View Motel and Cottages | April through October |
| Harbour Cottage Inn Bed and Breakfast | Harbour Cottage Inn's Bowsprit Bar is closed for the winter! |
| Hutchins Cottages at Acadia | Mid-May to Mid-October |
| Moorings Inn Waterfront and Cottages | Inn Suites open May 16, yearly cottage rentals. In-season office hours: 9am -5pm |
| Peter Trout's Tavern and Inn | closed til early December |
| Quietside Campground | thru October 14, 2023 |
| Seal Cove Cabins | May - October |
| Seawall Campground in Acadia National Park | thru October 13, 2024 |
| Seawall Motel | year round |
| Smuggler's Den | Memorial Day Weekend to mid-October |
| The Claremont Hotel & Little Fern Restuarant | closed for the winter |
| The Lodge-ings at Southwest Harbor | All year |
| YWCA of Mount Desert Island | All Year |
| Acadia Cornerstone Real Estate | Year Round |
| Allen Insurance and Financial | M-Th 8am - 4:30pm Fri 8am - 3:30pm |
| Bar Harbor Bank & Trust | drive-up service and lobby service |
| Bayside Graphics | Year Round |
| Better Homes and Gardens / The Masiello Group | Monday - Friday 9AM - 5PM |
| Bowden Marine Service | M-F 8am-5pm. Also, May 1 to Columbus Day, Sat 9am-noon |
| Compass Marine Surveys, Inc | year round |
| Dysart's Great Harbor Marina | year round |
| Eastern Maine Recycling | Monday - Friday 8AM to 5PM; Saturday 8AM to 3PM |
| Edward Jones Investments | year round |
| First Express | Mon-Friday 10-5 |
| First National Bank | Lobby (350 Main St) M-Th 8:30-4, Fri 8:30-5, Sat Closed; Seal Cove Rd Drive Up: M-W 8-4:30, Th-F 8-5, Sat: Closed |
| G.F. Johnston & Associates | Year Round |
| Island Housing Trust | year round |
| L. S. Robinson Real Estate & Vacation Rentals | M-F 9am - 4:30pm |
| Material Research L3C | year round |
| MDI Mortgage Group, LLC | year round |
| Norumbega Moving and Storage | 8:00AM - 4:00PM Monday through Friday / CLOSED Saturday and Sunday |
| Quietside Realty | year round |
| Royal Promotions | M-F 9am-5pm |
| The Davis Agency | Year Round |
| The Hinckley Company | M - F, 9am to 4pm |
| The Knowles Company | Monday to Friday 9AM-5PM |
| Acadia Quietside Shop | Daily 10AM - 6PM |
| Carroll Drug Store | Store: M-Sat 8:30am-5:30pm Pharmacy: M-F 9-5:30, Sat 9-1:00pm Closed Sunday |
| Clark Point Gallery | by appointment: call Sarah at 207-669-2066 |
| Fiore Olive Oils and Vinegars | Year Round |
| House Wine | Monday – Saturday: 11:00AM – 8:00PM Sunday 11:00AM - 7:00PM |
| Island Arts Association | Shows throughout the year - check our Events page! |
| Liquor Locker Inc. | MONDAY-SATURDAY 10AM - 6PM CLOSED SUNDAY |
| McEachern and Hutchins | Monday - Friday 7AM to 5PM, Saturday 8AM -PM, Sunday 9AM - 3PM |
| Meristem | Monday - Saturday 10am - 6pm |
| Quilt 'n' Fabric | Tues thru Sat 10:00am to 5:00PM |
| Sawyer's Specialties | Monday through Friday, from 10AM to 5:00PM, Closed Saturday and Sunday |
| Southwest Harbor Artisans | though October 20, 5PM |
| The Cygnet Gallery | Closed October 16 - 21 |