Went to the Shinagawa Aquarium for the first time last weekend.
It was my girlfriend's sister's birthday and so we made reservations for a restaurant and bought tickets to the aquarium in advance.

We ate at Grill & Bar AW55, they had an all-you-can-eat salad bar, a drink bar with different types of flavored water, and some soup as well. All of it tasted really good, I really liked the Bolognese pasta, but the salad and soup both tasted delicious as well.

After eating we went to the aquarium and it was really awesome, I liked seeing the jellyfish (as always) but the dolphin shows were really awesome as well. We actually stayed long enough to see the afternoon show and the night show, both with different themes.

On top of that, we unintentionally got to participate in a wedding?. It was totally unexpected, they even did a special show with the dolphins to celebrate it. It was quite the spectacle to see.

After enjoying the aquarium we went to get some dinner and found this hole-in-the-wall yakiniku restaurant that was unfortunately going out of business, probably due to the pandemic.
Luckily for us, all drinks were 100 yen... Between the 3 of us we ended up ordering like 25 different drinks I think, we started with a round of beers that each would normally cost 600 yen, for just 100 yen, and after that we ordered a bunch of different meats and just drank every different type of drink on the menu lol.
I was trying everything; plum wine, sours, beers.. we were a little drunk on the way out of the restaurant but we ended the night with some cake around 11pm still!

All in all, it was a total blast.