Matsuzaki town is located at the south Izu where the climate is quite warm throughout the year.
So, you can enjoy various kinds of sea activity including sea kayak, SUP and scuba diving.
http://www.nckkayak.com
https://nishi-izu-sup.amebaownd.com
http://kumomi-hamayu.com
If you like fishing, you can get on the fishing boat.
In addition to sea activities you can also try mountain bike at Matsuzaki,
There is nice trail course in the mountain where both of beginners and veterans can enjoy bike ride.
For details and reservation please contact the following;
https://yamabushi-trail-tour.com/e/index.html
Enjoy wonderful outdoor activities at Matsuzaki!