Just saw your question. Uber is your best option.

We went in December in the rain to see the lights and it was great! Umbrella works just fine and was not very crowded.

While dogs are not allowed on the upper level, they are allowed outdoors on the first level, both in the plaza and in the botanical garden. The Grotto holds special events throughout the year, including a Blessing of the Animals each July. Well-behaved leashed dogs are allowed.

$5 if you want to go up to the garden.

check location of Motel 6 allows pets. Air BNB try that too.

Since I live in IN, I have no clue of how far it is, but if you use Google or MapQuest, you can get your answer right away. Good luck in your search!

Yes, we saw dogs on a leash.

Yes you can get to the Grotto from downtown by taking a tri-met bus. if you caught a bus at SW 6th and W Burnside (Stop ID 792): Board 12-Barbur/Sandy Blvd to Parkrose TC (The Grotto stop is ID 5046) this option is estimated to take 37 minutes travel time. Trimet has a web site. They are and organization. (trimet + org) They have a trip planner that you can use to plan a trip with to get there. Just type in where you are going to and where you are starting from. It will generate a potential trip plan that will tell you the details. And options you have. and you can enter a different starting place closer to where you will be downtown. Adult one way far is $2.50

There is not a shuttle I am aware of. That would be lovely if there was! Maybe call The Grotto & inquire, perhaps they will have a suggestion. I found everyone very helpful! Enjoy! Can't wait to return! Blessings.