I will give you the (estimated by the big brains) low tide times and days:
Sun 6th 4 pm low tide.
Mon 7th, 7 am low tide. (Beware, they tell me then at 9 am it is high tide. Moves wikiwiki eh?!)
Tuesday 8th, 7;50 am. and at 6 pm.
Wednesday 9th, 8:28 am. and at 6.49.
Thurs. 10th of Jan: 9; am and at 7:35 pm.
Friday 9:37 am and at 8:18 pm.
Saturday 10;12 am and at 8:59 pm.
At the estate, If at the fence mauka or makai side, don't stare in peering like a kid gawking at animals at the zoo. Be discrete, polite, nonobvious. If you see Ms. Anderson, say aloha auntie, how you!? do NOT block the gate or park anywhere near it. This is done too often as it is. At the Anderson estate as well as Kaha'aina. The Cooke estate.
When there, don't wear shoes on the beach. Don't wear that stupid shell lei or any lei. Taking pics with your android phone? keep the phone in pocket until ready to shoot, not aiming at things all the time at arms length. Not cool around residential area.
Park in the beach parking lot or across the street where there is ample car space, away from the road. The beach parking lot is about one house or so to the left of Pahonu. Show no valuables visible within the car. As mentioned, best to leave car windows open. Leave em open half way. Be friendly to the locals. Nod upwards with a smile and say whussup! to da braddahs if they look your direction. Ignore the blalahs and get planny pilikia maybe.
Enjoy yer trip, lemme know if you need more days tide info.
Oh, while in Waimanalo, check out Keneke's plate lunch if ono for some local grinds, If you want Mexican, I recommend Serge's. They are down a mile or so towards Kailua. Go into the market for six pack, Serge's is BYOB (yaaay!)
Eat at Wailana coffee shop., (60's style cafe) Ala Moana Blvd/Ena Rd.
Drinks in their bar across from the register, it's a cool 60's style Polynesian bar in the round. Happy hour specials on the greazy food. yum.
Up that street, Ena road, Irish Rose saloon, live rock music every nite no cover, fun place. behind it best dive bar around; Hideaway. (If smoke bothers ya, don't bother.)
Hang out on the beach before sunset near Hilton Hawaiian Village any Friday eve for the fireworks. Check out Cuz Henry at Duke's Waikiki beach for Duke's on Sunday. It is a party. Henry Kapono, good friend for years. Our contemporary local Ambassador of Aloha.
Cool local farmers market at International market Place every Thursday TIME: 4:00 p.m. - 8:00 p.m . Worth a visit.
Then go over to that wacky tiki bar a few feet away and have a drink, beer, froufrou cocktail... and askem why do they have effigies of Hawai'i's sacred revered gods decorating an alcohol venue. (haha).
Check out the Aloha Stadium swap meet. Wednesdays, Saturdays Sundays. Pick up rubbah slippahz, (do not call em flip flops.) Aloha wear and carvings, necklaces and souvenirs of all kinds at near wholesale. Be polite and bargain if you picking up planny stuffs from one vendor but in a friendly manner. If rude, They don't need you, cuz tourists flood the place. They want you only if you are cool and don't say stuff like "I will give you three dollars!" or "Well I can get this a lot cheaper at the other place!" (go there then!) I say this cuz it's so prevalent. We don't like demands, commands or complaining.
hmmm where else. Oh yea. DO visit the zoo. That was the first job I had at age 15. 1970. Not that that is the reason. But it's quite nice.
Ono's Hawaiian plate lunch on Kapahulu up the road. Or Haili's Hawaiian food. For 5 dallah pitcher beer, fabulous Mexican food and live local music, it's OnStage / Lulu's mexican Grill. Best time 5 to 7, everything 2 dollars off the menu price. All three within two blocks or so, Ewa side of Kapahulu. (left side as ya go up.)
Best local plate lunch, Rainbow drive In. Diamond head side on Kapahulu before all this.
For a huge selection of Hawaiian collectables and aloha wear, Bailey's antiques on Kapahulu.
Take a cruise all the way up from Waimanalo along the coast through La'ie, (Polynesian Cultural center is a must) and then end up at Hale'iwa. Great shops and grinds. Along the way up from Kane'ohe, you will pass Waiahole Poi Factory. Chance 'um. Bestest Hawaiian plate lunch around.
(Start here for any O'ahu reviews.
http://www.yelp.com/biz/waiahole-poi-factory-kaneohe)
Do visit Foster Botanical Gardens, Vineyard and Nu'uanu.
Have fun. Happy New Year.