Widow & widower support groups, organisations & networks
WAY Widowed & Young: a lifeline for many https://www.widowedandyoung.org.uk/
The Loss Foundation: The Warriors of Compassion of the Loss Foundation provide support to people who have lost loved ones to cancer; spouses, family members, friends. They have a website with helpful resources and offer in-person support in London and Oxford in the form of bereavement support groups and other supportive social events. http://thelossfoundation.org/
Cruse Bereavement Care offer support to people who have experienced the loss of someone close – in Scotland: www.crusescotland.org.uk/, in England, Wales and Northern Ireland: http://www.cruse.org.uk/ (they have very long waiting lists though!)
GriefChat®: founded in 2017 in response to the long waiting times experienced by many bereaved people trying to find support. GriefChat offer free of charge counselling.
Support After Suicide Partnership: network of organisations that support people who have been bereaved or affected by suicide http://supportaftersuicide.org.uk/
AtaLoss.org: a charitable movement of people across the UK who are passionate about enabling the bereaved to receive the support that they need – in easing the pain together. Committed to providing effective signposting to organisations that support the bereaved. One of the charity’s projects – Bereavement Support for Men (BSM) – gives opportunities for men to gather around activities and food, helping to provide a better understanding of their grief journey and to support them during times of loss.
Aspetos – German language bereavement support network and portal. Offers useful resources and an online forum https://aspetos.com/
Option B – a resource dedicated to helping build resilience in the face of adversity, including dealing with grief https://optionb.org/
The Good Grief Trust: portal to bereavement services, signposting to national and local support.
Other resources
Mindfullybeing – mindfulness training and resources by Dr Avinash Bansode, who also leads on the mindfulness programme for some Fire & Rain Soul Spas https://www.mindfullybeing.co.uk/ (also see co-hosts)
The Free Mindfulness Project – contains downloadable guided meditations (free) http://www.freemindfulness.org/home
Mental Health Foundation and mindfulness http://bemindful.co.uk/
A collection of tools and resources to accompany and accelerate the healing journey of those living with grief and/or trauma http://www.a2zhealingtoolbox.com
Also check out:
Fire & Rain Soul Spa® | Bereavement Support UK 
Do you have a group in Oxford
Hello. No, all my retreats take place in Scotland. To find local groups in your area these websites might be good starting points: AtaLoss.org and https://www.thegoodgrieftrust.org/