"Secret Water" is set in Hamford Water, an inlet facing the North Sea in the east of England.
As in the story, this inlet has a wide tidal flat due to the tides. The town in the story has more residential areas than when Ransome wrote it, but when I look at the map, the topography of the tidal flats seems to be exactly the same as in the book and has not changed. I learned from pamphlets that the nature of the tidal flats has been preserved here through conservation efforts. It seems that for British people, it is a protected area where they visit to observe the wild birds and other nature of the tidal flats, but it is completely unknown in Japan.
Walton-on-the-naze station was the end of the railway line. The area in front of the station is a quiet residential area, with only a post box and no shops. As I started walking, I noticed that this is a summer tourist spot, and as I got closer to the coast, the number of souvenir shops increased. There were also people passing by.
I had not yet decided on a place to stay here, and I couldn't. It seems that Japanese travel agencies did not know the name of this place. I left Japan without being able to find a way to reserve a place. So, I headed first towards the coast, where I knew there was a travel information center. As I walked east, I found a small information center near the coast, and I noticed that the glass window had today's high and low tide times posted. However, I made a mistake by forgetting to write down the tide times at that time. What was more important was to secure a place to stay for the night. I asked the person at the information center to call around, but they said there were no more places to stay for the night. I was in trouble, it must have been the busiest time of the summer. I couldn't get through on the phone, but they told me to go directly to a small hotel nearby, so I went there. But there were no rooms available there either.
I had prepared myself for this. I decided to sleep outside and bought food at a small supermarket. Then, I decided to go to Swallow Island to see the crossing where I can walk across the Red Sea. I walked west along a hot residential road. Many cars passed right beside me. As I walked, it seemed longer than the distance on the map. The number of houses lined up neatly along the road decreased, and the distance between the houses became wider. Soon, I could see the water far to the right of the unharvested wheat fields, and beyond that, I could see what looked like Swallow Island.
After walking on the footpath heading west for a while, I finally came to a T-junction with a sign that said to go north at this fork to reach the island. From here, it was a dirt road surrounded by tall reed-like grass on both sides. I didn't encounter any cars or people here. After walking for a while, at 13:20, I arrived at a pier that I thought must be the crossing point for the Red Sea. Swallow Island can be seen low in the distance. But the pier is full of seawater. There is a little bit of seaweed in the shallow water. No fish to be seen.
I wonder when the tide will go out. I finally remember that today's high and low tide times were written at the information desk. At the time, I was so preoccupied with finding a place to stay that I didn't have time to take notes.
I decide to wait a little while on an octagonal concrete platform that looks like an old gun emplacement. Anyway, all I have to do today before nightfall is find a place to camp. This large concrete platform is probably a war relic built in preparation for the German army's landing. I was able to enter the concrete platform from the side, but I don't feel like spending the night here.
14:30 Tide had still been going up. Considering the position in which grass has grown, already being filled also sinks in having hoped that it might finally be to grass. The bottom of a pier also fully sank. The canoe came from offing. A U-turn was made near the pier and it sees off going away.
15:15 Car was came. Parents and children had ridden. When the black dog was taken down, it froliced, it turned around it and it jumped in to the sea. If it thinked whether it was swimming in the circumference, it would go up to a pier, vigor would be attached, and it would jump in to the sea again. the dog was repeated no less than 3 times, and they are laughing heartily wholly.
16:00 When it came here, the empty can in which the position of tide was shown appeared from the water surface. still more . it was track of the slope of concrete to a tire -- it seems that continues straightly to the sea Does the way which can pass along a car appear in the sea? Three dogs came for the walk with 16:30 women. The dogs currently called in TESSA, HAUDY, and the name He adds a wooden stick and walks.
Two bicycles came. The shoreline was left to west.
The way had appeared in the sea at 17:00. still, up to the center to an island, although it did not arrive, it was track along which the car passed -- the marks of track continue to the island.

17:35 I can already go, and crossing for which it was waiting are tried. Since it got wet with shoes, he walks with bare feet by sewing. But the pebble mixed with mud was painful and I did not continue walking. Abandonment. Although I came about the half to a swallow island, if I had also sandals.
Crossing will be given up and I would pass at a station till a morning. Although the way of the shore was regarded as early when going to the east, the way has been lost soon.
The tractor had done the place which was not a field, either from a distance there. A black dog was also pulled two and was following. What was carried out and it will shine. When looked, the tractor stopped near me. A grandfather wait for me and Lost? was heard. Although a provincial accent was tight, I said that he wants to go to a station, and let I understand. a basis -- The way which it walked must be returned.
Moreover, he trudged along along the way to which it came, and I had returned to the pier of the witch of a basis. If the place which will pass night early by the time it becomes dark was not found. Although I had returned to a station, there was no windscreens, such as a waiting room, and a bench was cold and impossible. To then, the thing ridden on the train for London It was about one passenger at one vehicle. It wears 21:00 Colchester. I changed to north going here again. A day sinks and was dark. A uncle of the India who attaches headphone teached me kindly ,I asked him for Norwich was this home. The seat which the vehicle of an Anglia railroad also had a table with a crossing sheet, and was vacant in many passengers.
A toilet in Norwich station was closed. It cannot use night. Although it was, the too busy city out of which it has come out of the station does not have the place passed till a toilet or a morning, either. The waiting room of a station had also been closed after the last train. I rided on the train which the thing of a toilet also had and was left anyhow, and gets down at the first station. As for the waiting room, it was closed also here. There was only a bench of a home till a morning.