Photo of Yoshioka-kaitei station name plate
I visited Yoshioka-kaitei station of the Seikan Tunnel in 1993.
I bought "ゾーン539カード(Zone 539 card)" (820 yen) at みどりの窓口(Midori-no-madoguchi:JR Ticket Reservation Office).
I reserved "ゾーン吉岡5コース(Zone Yoshioka 5 Course)".

Zone Yoshioka 5 Course:
青森(Aomori) 10:56 → 海峡5号(KAIKYO 5) → 吉岡海底(Yoshioka-kaitei) 12:22 → Yoshioka-kaitei station tour(1hour 2 minutes) → 吉岡海底(Yoshioka-kaitei) 13:24 → 海峡7号(KAIKYO 7) → 函館(Hakodate) 14:49
Tour time was 1hour 2 minutes.

Other course
Zone Yoshioka 3 Course:
Aomori 9:21 → KAIKYO 3 → Yoshioka-kaitei 10:43 → Yoshioka-kaitei station tour (1 hour 41 minutes) → Yoshioka-kaitei 12:24 → KAIKYO 5→ Hakodate 13:34
Zone Yoshioka 7 Course:
Aomori 12:06→ KAIKYO 7 → Yoshioka-kaitei 13:22→ Yoshioka-kaitei station tour (2 hour 13 minutes) → Yoshioka-kaitei 15:35 → KAIKYO 9 → Hakodate 16:52
Zone Yoshioka 9 Course:
Aomori 14:08→ KAIKYO 9 → Yoshioka-kaitei 15:33→ Yoshioka-kaitei station tour (54 minutes) → Yoshioka-kaitei 16:27 → KAIKYO 11 → Hakodate 17:49
弘済出版社刊JR時刻表(Kousai publishing JR Time table) 1993/10

Photo of Yoshioka-kaitei station visitor passage
When arriving at the Yoshioka-kaitei station, the plathome is narrow and the entrance was directly attached to the visitor passage.
Yoshioka-kaite station's wall was illumi light art.
Dolphin or something is drawn, but I taken a photo with flash-lump, a photo was unclear...

Photo of Yoshioka-kaitei station visitor passage No.22
So I taken a photo without flash-lump, but a photo was unclear...
After that, I saw the tunnel excavation demonstration.

Photo of Original Orange card of Seikan Tunnel ZONE 539
These Orange cards which can buy only visitors of seabed stations.
Original Orange card of Seikan Tunnel ZONE 539. ZONE539 is nickname of Seikan Tunnel.

Photo of Original Orange card of Seikan Tunnel ZONE 539 no.2
I pressed the stamp of the seabed station.

Photo of Seikan Tunnel Tour original document
Seikan Tunnel Tour original document.

Photo of Yoshioka-kaitei station stamps
Yoshioka-kaitei station stamps. 2 types.
The next day, I took a trip to Tappi-Kaitei station .

Additional notes:Now, Yoshioka-kaitei station have been discontinued.

Photo Date:10/Oct/1993
Posted Date:4/Aug/2013