| Year | Month | Exchange Information |
| 1980 | July | Dunedin delegation led by Mayor Skeggs visited Otaru and signed the contract of affiliation |
| 1981 | January | Otaru delegation (Mayor Shimura) visited Dunedin |
| 1984 | July | Dunedin delegation led by Mayor Skeggs and Dunedin Brass Band visited Otaru and participated '84 Otaru Expo |
| 1985 | February | Otaru delegation (Mayor Shimura) visited Dunedin |
| 1988 | May | Otaru delegation (Mayor Araya) visited Dunedin |
| 1989 | July | Dunedin delegation (Mayor Skeggs) visited Otaru |
| 1990 | February | Otaru delegation (Chairman Yamabuki) visited Dunedin |
| July | Dunedin delegation led by Mayor Walls visited Otaru and cerebrated 10th anniversary of affiliation |
| 1992 | July | Dunedin delegation led by Mayor Walls visited Otaru and cerebrated 70th anniversary of the Otaru City |
| November | Dunedin business mission visited Otaru |
| 1993 | February | Otaru delegation (Mayor Araya) visited Dunedin |
| 1995 | June | Dunedin delegation led by Mayor Walls visited Otaru and cerebrated 15th anniversary of affiliation |
| 1996 | February | Otaru delegation (Mayor Araya) visited Dunedin |
| July | Dunedin delegation (Mayor Turner) visited Otaru |
| 1998 | August | Otaru delegation (Mayor Araya) visit Dunedin to cerebrate Otaru Japan Week and Mayor Araya officially opens Otaru Teien (Japanese Garden) |
| Year | Month | Exchange Information |
| 1987 | July | The first Dunedin Youth Group visited Otaru |
| 1988 | August | The first Otaru Youth Group visited Dunedin. (In August
1998 the 6th Otaru Youth Group visit Dunedin) |
| 1989 | July | The second Dunedin Youth Group visited Otaru |
| 1991 | July | International Junior Art Camp group visited Otaru |
| 1992 | August | International Junior Art Camp group visited Otaru |
| 1993 | July | Dunedin Youth Group visited Otaru |
| August | International Junior Art Camp group visited Otaru |
| 1994 | July | International Junior Art Camp group visited Otaru |
| 1995 | July | International Junior Art Camp group visited Otaru |
| 1996 | July | Dunedin Youth Group visited Otaru |
| 1997 | August | International Junior Art Camp group visited Otaru |
| 1998 | February | Dunedin Youth Group visited Otaru (The first in winter) |
| Year | Month | Exchange Information |
| 1989 | April | The first AET (Assistant English Teacher) Mr Ross Coleman was invited to teach in Otaru junior high schools.
(till December 1990) |
| 1990 | July |
| 1991 | April | The second AET Mr Wayne Dixon (till December 1991) |
| July | Three Otaru teachers visited Dunedin |
| 1992 | April | The third AET Mr Robb McKinney (till March 1994) |
| August | Three Otaru teachers visited Dunedin |
| 1993 | July | Three Otaru teachers visited Dunedin |
| 1994 | April | The fourth AET Mr William Lucas (till March 1996) |
| August | Three Otaru teachers visited Dunedin |
| 1995 | July | Three Otaru teachers visited Dunedin |
| 1996 | April | The fifth AET Mrs Donnella Atkin-Ferguson (till March 1997) |
| July | Two Otaru teachers visited Dunedin |
| 1997 | April | The sixth AET Mr Noel Campbell (till March 1998) |
| July | Two Otaru teachers visited Dunedin |
| 1998 | April | The seventh AET Ms Marie Lewis (till March 1999) |
| Year | Month | Exchange Information |
| 1991 | October | 20 artworks by Dunedin artists were staged in Otaru Art Exchange Exhibition |
| 1992 | September | The Sister Cities Art Exhibition (Dunedin 20, Nakhodka 20, Otaru 62 artworks) |
| November | 52 photos by Otaru photographers were staged at Multicultural Festival in Dunedin |
| 1993 | July | The Otaru Youth Choir performed in Dunedin |
| October | Otago University Assistant Vice Chancellor Professor Ann Trotter gave an address on the role of women in New Zealand |
| 1994 | February | 20 wood crafts were staged at Otago Art Society Exhibition |
| 1994 | March | The Sister Cities Art Exhibition (Dunedin 22, Nakhodka 14, Otaru 63 artworks) |
| November | The Fourth Sister Cities Art Exhibition (Dunedin 22, Nakhodka 16, Otaru 51 artworks) |
| 1995 | September | Dunedin Photographic Exhibition in Otaru, 24 photos |
| November | The Fifth Sister Cities Art Exhibition (Dunedin 22, Nakhodka 15, Otaru 48 artworks) |
| 1997 | February | The Sixth Sister Cities Art Exhibition (Dunedin 17, Nakhodka 15, Otaru 58 artworks) |
| November | The Seventh Sister Cities Art Exhibition (Dunedin 19, Nakhodka 15, Otaru 50 artworks) |