useful  information in sea kayaking:

comprehensive tutorial: 

• Kayak Paddling Net (with animation)
• Playlist Gordon Brown  Videos

Forecast weather,  wind,  sea (windy)

Strokes:

• low brace 
• high brace
• low / high brace (real conditions, ..

special techniques:

• Surf Technique
• Videos: launch through surf zones, Wave skills

Self rescue:

• Paddle Float (cramble, heel hook, reenter&roll) ; Release Line Paddle Float
• Various (Cowgirl-entry, Balancepoint Method, High Brace, Re-entry and Roll, Sweep Roll),
• Reenter & Roll, Paddlefloat Reenter & Roll 
• The ladder, The scramble, The ladder (real conditions), Sottocosta

assisted rescue:

• Heel hook, Heel hook 2
• 30 second kayak rescue
• Sea Kayak X Rescue
• T rescue (Sottocosta)

VHF emergency call (UK sea kayak guidebook: pdf

Practical aspects:

• How to load a sea kayak

Tide Charts

• Kornaten

Revier Info:

• Kroatien
• Sardinien: Asinara

• Kanu.de, 2021, Signale beim Kanufahren (PDF)

• Paddeltechnik (Wingpaddel): Paddelschlag, David Morton, Tom Liebscher, Lisa Carrington Vid1 Vid2, FENN Technik in Wellen
• Wiedereinstieg : FICK, KajakNord
• Surfskipoint Thunersee, Shop, Surfskimiete Neuhaus (Videos: Unload, Einwassern

• GFZ Helmhotz Potsdam, Merkblatt Tsunami (PDF)
• eskp.de, "Tsunamigefährdung im Mittelmeer", "Tsunamigefährdete Regionen im Mittelmeerraum"
• JOURNAL OF GEOPHYSICAL RESEARCH, 2012, "Probabilistic tsunami hazard in the Mediterranean Sea" (PDF)

• Kayaking (Misool) Raja Ampat (Video by Tuuli Meriläinen & Nicklas Millegård)

• Nanook of the North (Flaherty, 1922): Video
• How to fit FIVE people in a ONE MAN KAYAK [Inuit Style]: Video
• Kayak rolling in east Greenland 1930: Video

• Italian Rivers: RiverZone