I check the Yururira Towada Tourism site fairly regularly, but since the end of May I've been preoccupied (I wouldn't say "busy" exactly) with various things so I didn't have a chance to visit it until today.
Wow. Seems like there are a lot of random events going on this month: a Beer Festa, a Native Trout Festival in Oirase River, and the Towada Jouba (Horseback Riding) Club Festa, not to mention the Hanashoubu Festival (which actually runs through to mid-July).
Beer Festa (Jun. 1-30)
Location: Fujiya Hotel Restaurant "Legrain"
Time: 17:00-21:00 (last order 20:30)
A la Carte Drinks: 350-550yen
A la Carte Japanese Food: 300-800yen
A la Carte Chinese Food: 210-1050yen
A la Carte European Food: 300-1000yen
120min All-You-Can-Drink: 2000yen (per person)
120min All-You-Can-Drink + Food Plate: 3500yen (per person)
Native Trout Festival in Oirase River (Jun 20)
Location: Oaza Aisaka Chiku Miyukibashi ("Miyuki Bridge")
Registration Time: 0:00-3:00
Event Time: 03:30-10:00
Fee: 1500 (incl. insurance)
Register by emailing your Name, Phone Number (cell or home), and Address & Postal Code to towadafp[at]yahoo.co.jp between Jun 5-16. (Applications can also be sent by fax to 0176-27-6673). If you do not receive a registration confirmation email by 3 days prior to the event, please resubmit your registration information. Tickets (fish catching only--no insurance) will also be available on the day of for 800yen.
Towada Jouba (Horseback Riding) Club Festa (Jun 20)
Location: Towada Jouba Club, 115-5 Oaza Sanbongi Aza Saihaba
Horse petting/riding area; play area (jump ropes, swings, etc.); treasure hunt; live stage performances; "American bike" (motorcycle) parade; farmer's market; BBQ (1500 yen per person, by advance ticket sale only); etc.
Hanashoubu Festival (Jun 20-Jul 19)
Location: Tezukuri Mura Risoukyo
Fee: Adults 500yen; Elementary/Junior High Students 200yen
Enjoy the sight of hundreds of varieties of Japanese irises, Chinese Peonies* (and various other flowers and trees) in full bloom in the extensive gardens at Risoukyo. Traditional thatch-roofed houses will also make you feel like you've gone back in time. **There is also a free mochitsuki taikai (mochi making event) on Sun. Jun. 20 and Sun. Jun. 27 at ~11:30. You can try making it, or just sample the finished product!**
(*Not 100% sure, but it seems from the website that Jun 10-20 is actually the peak of the blooming period for the peonies...)