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Blog of Leon Derksen

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  • Started on November 19, 2017
  • Number of posts: 11
  • Number of comments: 0


Setting out to sea

In the previous blog, I mentioned that although the survey hadn’t brought to the wreckage material, we did manage to narrow down the search area for our last day of diving. And on our last day, 9th September, we were ready to give it our all.

Submitted on 12 September 2018 - Number of comments: 0
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Yoshida-san at the doorstep of an eelgrass-jungle.


Still hitting rock.


A fresh batch of sea urchins, a treat for which you'll have to pay quite a sum in Japanese restaurants. Back on the shore, Yoshida-san served us some fresh ones.

A tiny piece of wood

Submitted on 10 September 2018 - Number of comments: 0
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Pre-dive discussion. Mr. Jinbu of the Hakodate Newspaper, third from the left, watches closely.


The plan visualised.


The seaweed jungle and its inhabitants


Fanning away the sand by hand


Mr. Hayashibara (centre, ARIUA/TUMSAT) joined our team on day 2

Nature’s schedule, Nature’s rules

Submitted on 09 September 2018 - Number of comments: 0
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Our research vessel for the coming days, the Dai-San Ebisu Maru.


Mr. Niida, fisherman and our captain-for-hire, and prof. Iwabuchi (Tokyo Unversity of Marine Science and Technology).


Mr. Takahashi (centre l) and Mr. Yoshida (r) discussing the plan for the dive


Mr. Takahashi (ARIUA) almost ready for the first dive


Mr. Yoshida took the first plunge


Mr. Yoshida underwater, using a rope to search in a circle around a buoy. Unfortunately the area was mostly covered with sandy sediments and pebbles.


Blowing bubbles


Sea urchins and rocks. Mr. Yoshida normally makes a living from fishing up sea urchins and other underwater creatures.


Makeshift ladder, installed by Mr. Niida and Mr. Yoshida because there's no ladder on this high-sided boat


Evaluation of the first dive, from left to right: Mr. Yoshida (Yoshida Sensui), Mr. Takahashi (ARIUA), Mr. Iwabuchi (TUMSAT)

From 7 September to 9 September, the Maritime Programme and Tokyo University of Marine Science and Technology (TUMSAT) will revisit their collaboration to continue the search for the Kanrin Maru shipwreck near Kikonai in Hokkaido, Japan. This time, the search is continued in the form of a dive survey.

A renewed collaboration

Submitted on 31 August 2018 - Number of comments: 0
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A large model of the Kanrin Maru on top of Cape Saraki in Kikonai (Hokkaido), with flowers imported from the Netherlands in bloom (source:

Looking back, our trip to Hokkaido in November 2017 has been a great way to see how the story of a Dutch-made vessel has become so firmly rooted in the hearts and minds of the Japanese people we met along the way.

Submitted on 02 March 2018 - Number of comments: 0
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The Kanrin Maru model monument; the guardian of the Kanrin Maru heritage at Saraki Misaki.


Kikonai and Saraki Misaki (where the Kanrin Maru wrecked in 1871)