In case you missed it:
The shortest-line distance from Santa Cruz Island to the mainland is 16.4 nautical miles (18.9 statute) – starting at San Pedro Point, finishing at the southern end of Hollywood Beach, north of the entrance to Channel Islands Harbor. Capt. Forrest actually plugged in a slightly more distant waypoint – the resort at Mandalay Beach – which made it a 16.6-nautical mile swim. I don’t know why, but that’s what he did.
To break Ned’s record, I had to average 1.59 knots (2:02 per 100m, 2945m per hour) across the channel. To break 10 hours, I had to average 1.66 knots (1:57 per 100m, 3074m per hour). My neutral-condition (i.e., pool) pace for a swim of this distance, at my current fitness level, would be approximately 2.3 knots initially, fading gradually to ~2.05 knots.
My progress for the first five hours (corresponding to the nighttime portion of the swim) was as follows:
- Hour 1 — 1.4 nautical miles
- Hour 2 — 1.8 nmi
- Hour 3 — 2.0 nmi
- Hour 4 — 1.8 nmi
- Hour 5 — 1.5 nmi
Given my average progress over hours 1-5 (1.69 knots), the conditions may have been as much as a 20-25% “tax” on my swim speed.…