Wind: yesterday 0-19 knots from W then E, today 2-19 knots from N then W
Sea State: yesterday calm, today calm in am and rippled in pm
Visibility: yesterday 10-15 NM, today 15 NM
Sky: both days clear with cloudy patches throughout day
Temperature: yesterday 5-8 °C, today 4-6 °C
Atmospheric CO2: 414.23 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

Six visitors briefly came to the island yesterday morning. Lawrence installed the new deck hatch he made for the station boat. Everyone helped transport and load eight of the old batteries onto the college boat to be taken back to the shore for recycling.

I ran the water pump for five hours to fill up the cistern with cleaner seawater.

Three tour boats were in the ecological reserve yesterday. Today, a dive boat had several divers in the water just north of North Rocks at slack tide in the mid morning.

There was a lot biodiversity in the ecological reserve today. Here are the results from the weekly census:
6 elephant seals (1 adult female, 2 adult males, 2 female pups, 1 male pup)
57 steller sea lions (all on Middle Rock)
50 california sea lions (19 on Great Race, 31 on Middle Rock)
52 harbour seals
1 sea otter
6 bald eagles (4 juveniles, 2 adults)
8 Canada geese
18 brandt’s cormorants
16 double-crested cormorants
35 pelagic cormorants
2 ravens
141 gulls (mostly thayer’s gulls)
14 black oystercatchers
1 whimbrel
86 pigeon guillemots
16 harlequin ducks
10 surfbirds
28 black turnstones
1 snow bunting
1 song sparrow
1 fox sparrow