Jari Salomaa - Round-Trip Angel Island

Clockwise loop around Angel Island from Aquatic Park

16.1 km (10.0 miles)

6 hours, 41 minutes on 13 August 2020

Observed and documented by Brian Kiernan



  • Name: Jari Salomaa
  • Gender: male
  • Age on swim date: 42
  • Nationality: Finland
  • Resides: San Francisco, California

Support Personnel

  • John Grunstad - pilot, videographer
  • Katariina Salomaa - land support
  • Brian Kiernan - observer

Escort Vessel: R.H.I.B. owned by John Grunstad (San Francisco).

Swim Parameters

  • Category: Solo, nonstop, unassisted.
  • Rules: MSF Rules of Marathon Swimming, without exception or modification.
  • Equipment used: Swimsuit, silicone cap, goggles, ear plugs, watch.

Route Definition

Start @ Aquatic Park beach (just west of Dolphin Club), exit through Aquatic Park opening, clockwise around Angel Island, return to Aquatic Park beach via opening.

  • Body of Water: San Francisco Bay
  • Route Type: island loop
  • Start & Finish Location: Beach between SERC & Dolphin Club docks, Aquatic Park, San Francisco (37.808145, -122.421402)
  • Minimum Route Distance: 16.1 km (10.0 miles) (map).


LongSwimsDB: Round-Trip Angel Island

Swim Data

  • Start: 13 August 2020, 05:24:05 (America/Los_Angeles, UTC-7).
  • Finish: 13 August 2020, 12:11:06
  • Elapsed: 6 hours, 41 minutes, 1 seconds.

Summary of Conditions

Feature Min Max
Water Temp (C) 16.4 18.6
Air Temp (C) 13.5 18.4
Wind (mph) 0 10

GPS Track

Trackpoint frequency: 10 minutes. Download raw data (CSV).

Speed Plot

Nutrition: GU, bananas, granola bar, hot & cold water

Observer Log


Download PDF


Weather Data

Via NOAA Station FTPC1 - Fort Point, San Francisco, CA

Water Temperature


Air Temperature


Wind Speed