| Address | Marstal HarbourHavnepladsenMarstal 5960Denmark |
| Port Authority | Marstal Port Authority |
| Phone | 45 63 52 63 65 |
| Fax | 45 63 52 63 66 |
| - | |
| Coordinates | 54°52'2" N, 10°30'29" E |
| Decimal | 54.867456,10.5082401 |
| UN/LOCODE | DKMRS |
| Port Type | Harbor |
| Port Size | Small |
| Website | - |
| Terminal | Unavailable |
| Region | Denmark Straits |
| Inland port | Unavailable |
| Tide | Unavailable |
| Overhead Limit | Unavailable |
| Swell | Unavailable |
| Channel | 11 - 15 feet 3.4 - 4.6 meters |
| Cargo Pier | 11 - 15 feet 3.4 - 4.6 meters |
| Mean Tide | - |
| Anchorage | 11 - 15 feet 3.4 - 4.6 meters |
| Harbor Size | Small |
| Shelter | Good |
| Harbor Type | Coastal Breakwater |
| Compulsory | Unavailable |
| Available | Available |
| Advisable | Available |
| Local Assist | Unavailable |
| Provisions | Available |
| Fuel Oil | Unavailable |
| Deck | Unavailable |
| Water | Available |
| Diesel Oil | Unavailable |
| Engine | Unavailable |
| 0-24 Ton Lifts | Available |
| 25-49 Ton Lifts | Unavailable |
| 50-100 Ton Lifts | Unavailable |
| 100+ Ton Lifts | Unavailable |
| Fixed Cranes | Available |
| Mobile Cranes | Unavailable |
| Floating Cranes | Unavailable |
| Wharves | Unavailable |
| Med Moor | Unavailable |
| Ice | Unavailable |
| Anchor | Unavailable |
| Beach | Unavailable |
| Assist | Unavailable |
| Salvage | Unavailable |
| Pratique | Unavailable |
| Deratt Cert | Unavailable |
| Longshore | Unavailable |
| Electrical Repair | Unavailable |
| Steam | Unavailable |
| Electrical | Unavailable |
| Navigation Eq | Unavailable |
| Ship Repairs | Limited |
| Marine Railroad | Medium |
| Degauss | - |
| Garbage Disposal | Unavailable |
| Dirty Ballast | Unavailable |
| Telephone | Unavailable |
| Radio | Unavailable |
| Air | Unavailable |
| Telegraph | Unavailable |
| Radio Tel | Unavailable |
| Rail | Unavailable |