Surprise Dynamax Battles

In the Pokémon Sword & Shield Expansion Pass, there are a few surprise Raid Battles that you have to face on your own.

Honeycalm Island - Vespiquen

Location: Honeycalm Island
Catchable: No

As you progress through the story of the Isle of Armor and go to collect ingredients to use Max Soup on your Urshifu, when you get to Honeycalm Island and interact with the tree, you'll encounter a Dynamax Vespiquen. It cannot be captured.

Dynamaxed Pokémon
Vespiquen
Level 80

Base Attacks:
Attack Order
Defense Order
Acrobatics
Reversal

After defeating it, you will receive some Max Honey.

Vespiquen Den

Dyna Tree Hill - Greedent

Location: Dyna Tree Hill
Catchable: No

As you progress through the story of the Crown Tundra, you can interact with the giant tree in Dyna Tree Hill. If you interact with it several times, it will summon a Dynamaxed Greedent that will drag you into the den. It cannot be captured.

Dynamaxed Pokémon
Greedent
Level 90

Base Attacks:
Body Slam
Counter
Payback
Giga Impact

After defeating it, you will receive 30 Oran Berries, 20 Tamato Berries, 15 Hondew Berries, 10 Sitrus Berries, 5 Chople Berries, 1 Starf Berry, 1 Lansat Berry.

Greedent Den

Giant's Bed - Regigigas

Location: Giant's Bed
Catchable: Yes

In Giant's Bed, there's a Raid Den where you cannot put a Wishing Piece in. However, this isn't just an empty place but rather the location of Regigigas. If you have Regirock, Regice, Registeel, Regieleki and Regidrago in your party, if you go to the den and interact with it, Regigigas will pull you into a Max Raid Battle.

Regigigas
Level 100
OT:Yours
ID:Yours
Ability:Slow Start
??? Nature.
Date of Receiving
Giant's Bed. Level Met: 100
Giga Impact
Zen Headbutt
Hammer Arm
Crush Grip
Regigigas