Should we eat breakfast at Boedega Bay Lodge?
I would probably opt to eat where you are staying. For a gorgeous view of Bodega Bay while eating breakfast another alternative is The Tides Wharf Restaurant
I have always seen lots of sea animals; gorgeous view of the Bay; when dining here.
2) Where to go for views of the ocean?
You will have numerous opportunities along the drive to Jenner. I would definitely drive to Goat Head Rock area - which is also the mouth of the Russian River where it goes into the Pacific Ocean. This is a very popular drive down the hill to the ocean - worth doing. Jenner itself is small and a bit crowded - this is before you get to Jenner.
(Note: As you see on the web site - our politicians have closed many of our excellent places to pull off the road to see the ocean). Just be aware of this as you may see signs for other areas to go to but some may be closed).
3) Armstrong Redwoods - yes, definitely worth an hour or two.
4) For lunch, if you are interested in going to Korbel, I would go there for lunch. They have a nice deli there - lots of options and you can get a nice table overlooking the redwood forests. They have a variety of salads, sandwiches, and other lunch fair. Guerneville is a throw back in time - so you could eat there too; but I generally like Korbel deli for lunch.
5) Three wineries: Korbel, Hop Kiln, Kendall Jackson -
Korbel as mentioned would make a good lunch stop (about a 20 minute drive from when you exit Armstrong Redwoods - note: Other option for lunch is to buy some picnic goods and have a picnic at Armstrong Redwoods).
Hop Kiln - I almost always stop there (not for the wine - but for their mustands. They have wonderful mustards to buy there. There is a nice small pond; friendly service if you do wine tasting (note: This is more like week-day wine than reserve wine - but still fun). Its a a nice place to take pictures of the hop kilns there as well. Yeah - its right off the road; and worth a short stop.
Kendall Jackson - I am so so on that one. but if its your favorite worth going to. My two larger winery favorites similar to Kendall Jackson but much nicer
Coppola - amazing destination winery with restaurant, swimming pool; Hollywood exhibits; and more
Ferrari Cerrano (excellent wine - and gorgeous gorgeous gardens)
4) Driving Time
From Armstrong Redwoods to Healdsburg is about an hour drive.
From Healdsburg to Napa Valley is about an hour drive.
About half hour more to Yountville.
So plan on about 2 and a half hours from Armstrong to Yountville.
If you are eating dinner in Yountville, opt for a 7:30 or 8:00 dining time,.
5) Is this too much in one day?
Absolutely not - I love this trip a lot and am a repeater of this trip at least twice a year or more. As such, I would say, I have done it over 30 times - and each trip is unique and fun (yeah - Armstrong Redwoods is similar each time but I vary up the wineries; where I go on the ocean; how much time I spend shopping in Healdsburg; where I go to lunch and so forth).
I would suggest being on your way by 9 or 10 in the morning to enjoy the day to the fullest (note: If you are an earlier riser, all the better as you will be in the scenic outdoor area during the day.)
Do dress in layers for the day - the coast may be cold in the morning but as you drive inland you may end up with a hot day. So do dress accordingly to shed or add clothes as needed.
Hope this helps.
Have a good time.