First decide whether there is a basic itinerary, but what is a basic itinerary?

Here are some examples:

Example 1.

3/2 Chitose→Hakodate

3/3 Hakodate

3/4 Hakodate→Lake Toya→Noboribetsu

3/5 Lake Toya→Asahikawa

3/6 Asahikawa→Funora→Beiei→Sapporo

3/7 Sapporo→Otaru

3/8 Sapporo

3/9 Sapporo→Chitose

Example 2.

7/7 Chitose JR Inn → Kitakuni Yujun Park → Millennium Forest → Lunch → Rokkatei → Manabe Garden → Tokachi Hills

Accommodation: Kamishihoro Hotel

7/8 Kushiro-Swethara Station → Lunch → Sarubo Observatory → Kottaro Observatory → Lake Akan Cruise

Accommodation: Farm Inn Torch

7/9 Kussharo Lake Sand Bath→Mt. Susumi→Shuen-ni→Soubi Falls→Lunch→Otome no Tear Falls→Shiretoko Aurora→Shiretoko Five Lakes

Accommodation: Shiretoko Kiki

7/10 Kitahama Station→ Cape Notoro→ Abashiri Prison Museum→ Lunch→ Okhotsk Ryuhyo Museum→ Frukuen Takaishi Okhotsk→ Gerateria Rimo

Accommodation: Hokuten-no-Oka Tsuruga

7/11 Okhotsk Chipmunk Park → Lunch → Asahiyama Zoo → Kamui No Mori Park

Accommodation: JR Inn Asahikawa

7/12 Patchwork Road → Jyushi Hill → Shikisai Hill → Blue Pond → Farm Tomita → Lunch → Forest Spirit Terrace

Accommodation: Daiwa Roynet Nakajima Park